Either he was comfortable in their system, or art let him have much more space.
If I am gonna be honest here, I watched a few Nukes in 2020 of FURIA. It was looking like they just let HEN1 do his stuff, while art did something else. Right now, for example, junior, automatically from the start, was forced, to play as an AWPer, with the bomb. That is probably the worst role you can find yourself in and I am pretty sure that they didnt do that with HEN1.
I am mostly just worried that if they got saffee, he would be completely wasted in their team.