Replayability is one thing, but having to replay because you were unsatisfied with your initial choices in abilities just does not sound like a "pro" to me.
I'm not saying it is pro, I just think that if you have the ability to reset the choices you made in the game(be it mechanical, ability, or otherwise) it takes away the point of those choices; to the point of hurting replay-ability. Now I understand if you "screw your character up" it can ruin your experience, which is why I said, I am fine with a compromise(very limited respecs, honestly I wouldn't be angry if they allowed respecs whenever, either, just disappointed).
I just think it gives more "reason" to replay the game as the same class from start to finish, but with a different take.
But I guess I'm visualizing the option as something you come across, like a companion or an npc asking you if you'd rather learn to dual wield weapons than keep using a shield-weapon combo. That's probably why I don't see it as a big deal.
Ya, I understand that pov, but I just look at it as if I committed to a certain way of training, unless there is a major flaw in it, I would not about to be willing to change everything I've worked for my whole life, so to speak.
It is not a game changer at all to me though, so I'm not adversely against it, I just prefer not to even have it(waste time working on it).