It's not basically trading Trouba for Brodie/Hamonic. It's trading Trouba+2nd for Hamonic/Brodie+whatever the return Trouba garners, which like you said won't be a small amount.
letting a player of Trouba's caliber walk for nothing is not good asset management. Trading him now and collecting futures while still replacing him with a capable top 4 RD would still give the Jets a chance to compete for the cup next season while re-stocking the cupboards. Look at how the Islanders were left with nothing for John Tavares.
you're judging Hamonic strictly on points? really? there's more to a Dman's value in just points. If Hamonic can score 25-30 points without lots of PP time that's good enough. He just would need to be solid defensively and let more of the offensive reigns be given to Morrissey. Both Morrissey & Buff would be the main offensive catalysts in the Jets top 4.
tell me what scenario you like better:
Scenario 1:
Trade Trouba for Mike Green + 2 2nds (im guessing the later ones)
Scenario 2: using the a example from this article by Murat Ates
Seven potential trade destinations for Jacob Trouba and what...
Just using ANH example
Trade Trouba for a 2019 1st (9th OA)+Mahura
Trade 2nd for Hamonic/Brodie
Id rather have scenario 2 from a Jets POV.
Also the Jets haven't won with Trouba thus far..... they've been a competitive team with him and I think the roster is still good enough to make the POs and be competitive even without him. Banking on his value right now and making a series of moves to help stay in contention (trade for Hamonic/Brodie) while restocking the pipeline might be a move Chevy entertains