I'm not sure that I agree that a skill is supposed to be worth a feat. I'd consider a skill to be dramatically weaker than a feat in fact. I'd consider the feat on it's own to be more than worth the 4 stat points that the human variant gives up, since those stat points are generally going to be in stats that you don't care about.
I would be fine with those armor prof + ability increase, but not with the skill prof + ability increase. Skill prof seems to be worth significantly more. In fact the human variant race grants two ability increases, one feat and one skill. Unless there's a design mistake in this option, that skill prof is considered to be alone worth a feat (or a +2) - or they put a tax for getting a feat or extra skill at 1st level, which is unfair IMHO.