To be blunt you don't seem to have a CLUE what RPG stands for.
It certainly doesn't stand for attributes, it stands for ROLE playing game.
And
you seem to be confusing the literal definition of roleplaying with the RPG genre. Technically, you can "roleplay" in a wide variety of videogames (most notably adventure games)... but it's things like character definition and development that make a game an RPG. (Before you even think of replying to this, do us both a favour and go and look up the definition of adventure games on wikipedia or something. It might surprise you just how similar they are to RPGs, and may help you understand that the use of stats/numbers is really all that separates the two genres).
Stats does NOT have to be a certain way to qualify to be an RPG.
Did I say that Skyrim doesn't qualify to be an RPG?

No. It's still an RPG - just a flawed one.
Perks take up a lot of the slack of the REDUNDANT and sometimes plain idiotic stats that did the same thing.
Perks
are stats. That's the thing a lot of stupid people can't seem to get their head around. If you pick a perk that increases damage by 10%, how do you think the game recognises that change? It's all just numbers.
Stamina takes care of How long you can run, how much you can carry and how much stamina you have to swing and make power attacks etc.
And this is dumb. In real life, a weight lifter can carry heavy weights, but they're not necessarily going to be good long-distance runners. Nor is a marathon runner necessarily going to be very physically strong.

Consolidating Strength and Endurance into one thing (Stamina) is just oversimplification, pure and simple. And all it does is reduce roleplaying possibilities.
Agility and acrobatics was silly too, if you are acrobatic you most certainly would be agile ffs.
Both are gone, which again, is stupid. If you cannot fathom why some characters should be more agile than others, or why some characters should be better at jumping than others, then i'm wasting my time on a simpleton.
They were fluff stats to make it look more and it was convoluted and redundant.
Wrong.
You can achieve exactly everything you could in previous games, just now you have more options and you get perks that directly affect things instead.
I can no longer roleplay a fast, agile character. I can no longer roleplay a character who is physically weak, but has good endurance. etc. etc.
Before it was just empty stats, now it is actually doing something by using perk system.
I don't deny that perks add a bit more complexity, but they should be viewed as an addition, not a substitute for attributes. This is the thing so many stupid people can't seem to grasp - why not have both?
Just think about it, when a game have you jump around like a jack-rabbit so you can level up acrobatics and gain speed and jump, well it's silly and stupid.
The way Acrobatics was implemented in previous games wasn't ideal, but it needed fixing not removing entirely. And besides, what kind of [censored] of a player abuses the levelling system like that?
The sprint system makes much more sense, also it drains the stamina so it affects you in ways as well, you clearly become fatigued an if you "RUN" into a bandit you might be all out of stamina as well.
Two things should determine your sprinting abilities:
Endurance / Stamine (how long you can sprint for)
Athletics (how fast you can sprint)
In the real world, people don't all run at the same pace, do they?

...
But I guess stupid people will be stupid.