I mean, if you want to get technical about it, any "game" that allows you to "play" a "role" is a "role playing game".

I think a lot of flak that comes at Skyrim and Oblivion from people from the Morrowind (and I suppose the Daggerfall games) is the lack of diversification.
For instance, in Morrowind, if you were a fighter and wanted to use a healing spell, you couldn't just buy a spell and suddenly cast it all the time. It'd probably only work 10-30% of the time, AND it'd drain all of your magicka to boot!
Some people might say "oh that's lame, I can't use a healing spell when I need to restore my health". But, if you think of it from a role playing perspective, the magic arts are, uh, magic. There are entire universities dedicated to the craft. Can any warrior off the street REALLY come in and just be able to magically perform the job of a healer as good as a healer?
So you had to put the time into leveling up your skills, whether through practice or paying for training, until you got to the point where you could use it competently.
Conversely, if you were a mage, if you wanted to wear heavy armor you actually had to develop your heavy armor skill, yes, but you ALSO had to increase your endurance, because health in Morrowind was a function of your endurance. You might have a really good heavy armor skill, sure, but if your endurance wasn't high after a couple of levels, you wouldn't have that much health. You wouldn't be a squishy mage... just a crunchy one.
Fast forward to games like Oblivion and Skyrim. Need to damage a dragon? Pick up a bow, hit it every time. Wanna get some awesome armor? Make some daggers. Want to buff your stats? Enchant some stuff. Fighter, mage, thief, whatever, doesn't make a difference, you can do it all!
In some respects it makes it more accessible. You don't have to go through the frustration of the lower levels, and constantly failing and getting you butt kicked by little bugs......
In other respects, it makes the game, um.... TOO accessible? When you can do everything with no real difficulty.... um, then why doesn't everyone in Skyrim enchant their armor and run around like a bunch of badasses?
I guess you could say it's balanced out by the perk system, so that even though you have a certain skill, you can only devote your skill points to specific things.
At least, that's how I understand the argument.