I'm not saying they didn't let the players play freely, but if the influence area of NiKo is outside Nuke, Broky hasn't a lot to do or positions to play with an awp when he can't go garage or secret because NiKo is there doing multi kills and having impact all the rounds.
Last games NiKo changed positions and let them more space, but it's clear that it was to help them adapt before he leaves.
Now that he's gone, Broky has a lot of space to take and play with, that's why he looks better now, same for kjaerbye in other maps or other players. They need to take more risks, but they are aim skilled so they are gonna be fine.
After NiKo said that he likes G2 because they have a strong coach that takes decisions I really don't know what YNK was doing more than clubbing all day.