Yes I would call it an RTS, and an RPG together. Its called a mixed genre. Skyrim is an Action RPG.
Hahahahahaha, Baldur's gate is not an RTS RPG combo, it's a straight up CRPG where you just happen to control your whole party fully and not just sort of like Mass Effect, and Yes I know Skyrim in an action RPG, so is Vampire the Masquerade: Bloodlines, which had a great ballance of player skill and stats, if you play good enough you CAN overcome bad stats but it's really hard, that's how I see an action RPG.
Attributes were a way of describing a characters skill. Now with computers, we can actually show that skill WITHOUT attributes. This is no longer a time of "how strong are you", but rather, "Show me how strong you are".
Perks are just respresentations of skills you learn trhough repeadely doing something.
If I swung a sword every day for a year, I'm going to get better at swinging it and controlling it. Now if i spend some time learning how to do some fancy move, then BAM, we just explained skill progression and perks.
If I cook an omelet every day, after a while I will be able to make one damn good omelet. Then if I take some new ingratiation and make a pizza using my knowledge of cooking, there's a new skill i know, AKA, a perk.
Attributes may have STARTED out being just an abstract way of showing how strong or smart you were, but as I said before, they became an integral part of the genre, when someone(me at least) thinks RPG, they think questing and loot but also stat building, you can't just take out a part of the genre and not replace it, and no the perks did not replace it, they replaced SOME of it, but being good at hammers doesn't mean I'm strong, being good at Potion making doesn't make me smart, in the older TES games you could see a number that showed how smart you were, how srong or tough or lucky, now you have Skills but no Attributes, so everyone is exactly the same besides what they know, Attributes made you better or worse at things, in skyrim you start at the same level for everything with only up to go.
And the perks are sadly abstract as well, as if a spend all day swinging a sword only to suddenly know how to throw better fireballs, that doesn't make sense but can happen.
Morrowind and oblivion turned into a "play backwards, and plan early for your grind" game. Skyrim doesn't mess with that and say "Just play and let your skills level naturally, as was the original idea. But because of how leveling worked, people turned it into a numbers game, which is another way of saying "meta gaming". Your "planning very well" is meta gaming. Fact. How can you plan if you, from a character point of view, have no concept of the leveling system and no clue about joining guilds would block out others? This is exactly what Bethesda wanted to get away from.
This happens in D&D too you know, some level of metagaming is always going to happen, how does my character know what perk to gain if he has no concept of the leveling system? and I'd say it's pretty logical what guild in Morrowind you can't join at the same time, the 3 great houses outright tell you "you can only join one", the thieves guild and the fighters guild are fighting, and you can't be a preast of two religions at one time.
Planning Very well as I put it does not mean looking at a guide to figur eout what to do, it means not making bad choices, if you want to be a thief made fighter in Morrowind you have to spend your levels carefully, in skyrim I nevel felt that was the case.
You didnt become a battlemage because you didn't play like one. If a battlemage would do something, then do it. If they wouldn't do something, then dont do it. Why did you use archery? why did you pick locks?
You wanted to play a specific way, then you strayed from that. That is YOUR fault, not Bethesda's
"Alright let's bust into this locked chest with this unlock spel-" Yeah there isn't one, so no matter how much I don't want to play that freaking minigame I have NO CHOICE, and don't say "well just don't pick locks!", And miss out on loot that could be really helpful? I started shooting things with a bow because my mages was always out of Mana when fighting dragons so I needed another way to shoot them down, I NEEDED smithing to survive because bandits don't play by the rules it seems, one hitting my weak level 40(this is sarcasm) when he has full health. These are things I really feel are something that isn't my fault, but issues in the game itself.
Now let me end this by saying all of this is MY opinion, nothing more, this is how I feel about RPGs, and I do love skyrim to death, but it's less of an rpg.