Nope, I am not trolling, which is of course obvious.
He keeps improving and improving and now already thew over 21 meters again. If he keeps improving in the next months and has the championship genes of Majewski, he is definitely capable of throwing 21.50m and that's always a distance that puts you right up in the medal fight.
Read careful: if he has Majewski's "championship genes". Majewski always and everywhere is at his very best at major championships and throws by far his best distances. If Bukowiecki can do that too (again, if) and actually already reach the 21.50m, he simply will be in the medal fight.
Normally I'd say Storl (is he fit?) could be considered the favourite together with Kovacs, a fight which if both are fit in my opinion is somewhat 50/50. Obviously there are quite a number of athletes who are able to fight for the medals and Bukowiecki simply is one of them.