They're talking about having skills as a bonus to ability scores.
Given as that's... umm... what skills are (in both 3e and 4e) I think you're seeing a far larger difference than is actually there.
Nope, that's not what skills were in 3.x (I can't speak for 4E).
Consider: In 3.x, the largest ability modifier a starting character can have is +5. At the same time, the same character will very likely have 4 ranks in a plethora of skills, as well as a multitude of other bonuses coming from class, race, feats, and equipment. It is quite feasible for a starting character to have +6 or +7 to several skills, not counting the ability modifiers. After a level or two, the ability modifiers' influence is further reduced, and after level 7 or so, ability modifiers become even less important as players now gain access to minor magic items that grant +5 to skills.
In other words, ability modifiers indicate your character's untrained, natural potential, which becomes less and less important as your character's training, learned abilities, and gear take over.
Saying that skills are nothing but optional add-ons to the ability scores COMPLETELY changes the paradigm of the game. I don't mind making the ability scores a little more important, but what they are doing here is not my cup of tea. It's as much of a dealbreaker as the powers system in 4e was.
And I didn't even go into the whole matter of trained-only skill uses and such. Should a smart person who's never seen a computer in his or her whole life be able to sit down at the keyboard and hack someone's Facebook account?