This post has been one of your better ones, probably because you were on an iPhone or something before if I recall. But it's important that you admit that Skyrim is a flawed game. Now we're more on the same page because while I choose Morrowind as my favorite, and you (I assume) choose Skyrim we can both say with confidence that neither game is perfect and leveling criticism at one or the other isn't a dishonest exercise. Though in my opinion it's more useful to give Skyrim constructive criticism since it's the latest installment, and its reception is more likely to determine the future of the TES series at large but in particular the next TES installment. That said there is a fallacy here. No one would accused Skyrim of not being an RPG just because it's an imperfect game or has aspects that could (or even need) improvement. Yet let's pretend that the next Madden game (a football simulator) launches, but for some unknown reason the game is released and there's no quarterback - you just have a defensive and offensive line, and the guys on offense just choose a receiver or running back to give the football to before the play starts, cutting out the need for the quarterback. Now in this hypothetical you have a game that looks like American football. It reminds you of American football in many ways, and it has many things in common with American football...and yet it's not quite the same. Now you definitely wouldn't call it basketball or soccer, but it seems to be a different beast entirely. That's sort of the issue with Skyrim, it's cut out fundamental parts of the genre for no real reason, and dumbed down or poorly implemented other fundamental parts of said genre.
And that's what I believe to be a subjective opinion, and not an objective, factual statement that Skyrim lacks "essential", or "fundamental" parts of the genre, because I don't think that Skyrim is lacking anything that makes it any less of an RPG.
Is it lacking Attributes? Yes. But I don't believe that Attributes are fundamental. I believe that being able to customize and specialize your character in your own vision, and Skyrim still allows you to do that, without Attributes. I don't inherently hate Attributes, I'm not inherently against Attributes, but I don't believe them to be a vital aspect of RPG's. I believe they were a
tool to provide a vital
function, but with Skyrim, Bethesda has used different tools to provide that same function. The same function is in the game, it's just done in a different way.
As opposed to taking the QB out of Madden football, I see it as the difference between, say, having a button assigned for each eligible receiver, which is what is done now, vs. moving a cursor across the field to target where you want the pass to go (obviously, not a feature in Madden, but a feature I have seen suggested for future Maddens, a feature that has apparently been in football games of the past). The same function (passing the ball, running an offense) is still in the game, it's just done in a way that's different from what has been standard.
Because factually, objectively, nearly all of the functions of Attributes of past games remains in Skyrim.
Strength - Previously affected melee damage, and carrying capacity (as well as Fatigue). Now, melee damage is tied directly to perking your weapon skills, and carrying capacity is tied to the Fatigue stat.
Endurance - Previously affected your overall Health. Now, Health is determined by putting points directly into Health.
Agility - Previously affected bow damage, as well as staggering when hit by enemies. Now, bow damage is affected by perking your Archery skill, and there are perks that directly affect staggering and balance.
Willpower - Previously affected magicka regeneration. Now, magicka regeneration is tied to enchantments.
Intelligence - Previously affected Magicka pool. Now, you just put points directly into the Magicka pool.
Speed - Previous affected how fast you moved. Now, while the speed stat is removed, the game has implemented sprinting, which is a different, but related function, and sprinting is tied to your Fatigue.
Luck - Previously, affected a little bit of everything, as well as what loot you may find in dungeons. Now, that is affected by perks.
While the details may be different, I certainly don't believe it's drastic enough to warrant Morrowind's methods as an RPG, where Skyrim's methods isn't.
Guilds may be better than in Skyrim, but that doesn't make Skyrim not an RPG. NPC interaction may or may not be deeper in Morrowind than Skyrim (I believe that's debatable) but it's certainly not of such a lesser quality that it makes Skyrim not an RPG while Morrowind is.