Alright, then let me give some other reasons. Someone respecs to get awesome gear, enchanted, smithed to legendary using alchemy. They then respec and take the points out of smithing, enchanting, and alchemy to place in other areas. From a game dev point of view is that how you want your game to be played? Games are designed a certain way to be played a certain way, that's just common sense. Bethesda designed it to where you can not respec perks. If you don't like the devs decision then don't play their game. If though they were to add it, it should only ever be a one time thing. You can use it once, no more than once per character.
And it all boils down to this: Why should you care if someone else wants to respec? It's an SP game. It doesn't effect you. If someone want's to be an idiot and break their character, it's their decision; and as such should have no effect on you.
And yeah, you're right; but it just so happens the TES games are ment to be played the way you want to play them. KoA actually hit that nail on the head IMO, and even implemented a very well made re-spec system.
Point is; all these people crying and whining about how it'll break the game don't seem to realize they don't have to use the feature, and act like what others do in an SP game effects their own, when in all reality; that couldn't be farther from the truth.