I like Cuylle a lot. He is skilled, has good hands, he can skate and he also has his head screwed on right unlike a Gauthier.
The real challenge is always to get the overall game to a level where he can contribute on a shift by shift basis. It’s tough to get there nowadays for kids like him.
But if he manage to do that, I don’t see 20+20 as out of reach. It’s not about unique top end ability, many players in the NHL could contribute with the puck on their stick and some time with it. The other 95%, that is what separates who is on the inside from the ones on the outside.