The bust rate on highly talented Russian forwards is WAY higher than from other nations. It's a whole different dynamic. Different mindset, different culture, different priorities, different play style.
Like, these are the Russian forwards taken top-10 since 2005 :
Nikita Filatov
Alex Burmistrov
Nail Yakupov
Alex Galchenyuk
Valeri Nichushkin
Andrei Svechnikov
Vitali Kravtsov
Vasili Podkolzin
Like, for where that group was taken it's f***ing horrible. And just a litany of compete issues and character issues even on the guys who eventually did OK like Galchenyuk and Nichushkin.
And so yeah, it's a big deal if a guy comes over and is really committed to NA, speaks great English, seems like a solid, stable, competitive human being.
Kucherov is a hyper-competitive guy who came over to play NA junior almost right away. And teams want to make sure they're drafting Kucherovs and not Filatovs and Kravtsovs.