You can say the same of Tosun in that regard. But people would rather pull up his lack of pace to say he's not good enough. But if he just stood in the box and got service, he'd slot.
The idea is that Kean has a couple of world class players putting it on a plate for him. He's not having to hold up play, work, be actively involved in the game. He's basically Gyfi-ing at PSG. Letting everyone else do the leg work while he slots and does a dance.
While I don't think he's particularly special talent wise (which is my opinion), I think it's a more of a case that he doesn't fit our system or the type of striker who would be a success here.