I'm torn. I want this but on the other hand, I do not. It would be unfair for those who spent eons farming for candies just to get the perfect moveset for their trophy Pokémon but it would also help out thos who farmed a lot of candies who evolved their trophies and got the worst possible moveset. I dunno. Probably I would not want this in game. Don't get me wrong. I have a lot of Pokémon lined up if ever this is implemented but meh. Takes the fun away, I guess. You evolve one, then reroll if you don't like the moveset. Buy coins if you have the money or actually hunt gyms for the fund. What's the point of catching another Snorlax if you can reroll your 100IV and possibly get another chance of winning the RNG lottery?
Edit:
TMs would be nice though.