Leadership of the political organisation, not all. However the military branch's leadership is/was in Gaza (like Yahya Sinwar and others who were killed)

Ah okay

Yes, that's who was bombed in Qatar.

They do some finances and politics but aren't involved in running Gaza or the military/militants.

Then it makes a lot of sense they might fear for their life less than the militants actually trapped in gaza

Yes. https://en.wikipedia.org/wiki/List_of_leaders_of_Hamas