Well, they played 5 maps against G2 and never managed to put 10 rounds in any of those. So their level is not even close to G2. Now they've lost sayf who is atleast their 2nd best player so they are even weaker.
As for the rest, they had emil who literally just became Nip's coach (they didn't have one before), so they weren't mistreated in that regard. G2 don't even have a coach either btw.
They also never played FPX, and it's obvious that FPX > bonk.
So at best bonk is top 3 EU, now with recent changes they'll prob end up top 5-6 with zero prospect of ever besting the top teams (G2, FPX). Why would a top tier org like fnatic who puts an emphasis on winning sign them? Dunno you tell me