I would add Kaplan and Neil Smith to that list as well. I have not seen it written anywhere that all these people with their own insight, and sources, are just repeating what Brooks said and he is center of all this. I do not believe that to be true.
I think Drury wanted to trade Trouba, somehow it leaked out (not sure if it was Drury, Trouba, other that leaked it), Trouba and his team made sure the Wings were on his 15 team NT list. Now there are some hurt feelings based on reporting from multiple people.
As 223 wrote, the takeaway here is Trouba wants to stay in NY, so even if Drury wanted to trade him to a team not on Trouba's list, it would be a tough situation, who knows if Trouba would even go play somewhere else. It is not an ideal situation, and IMO it doesn't appear to have been handled the way it should have been, maybe by all parties.