I believe a solid majority of players can agree Trijent Dam is an extremely flawed map due to its size and layout, making it an extended hell for Humans vs Xenos. It's not like that would be its only flaw too, considering the other problems like marines having other objectives they have to complete if they plan on progressing, like fixing Filtration to undo the radiation riddled river that is an instant one way ticket to Medbay if you so much as breath near it.
All that said, Trijent Dam in itself is an amazing map when it comes to HvH. The flaws that makes it terrible for HvX allows it to excel for HvH. The size and layout make it far more superior for back and forth fights considering the properties of antagonists. I remember one of our best HvH rounds being hosted on Trijent Dam, a lot of positive feedback from the players regarding it. HvH on other maps like LV-624 and Solaris Ridge have received relatively much worse feedback for HvH with a lot of complaints regarding it through time and time again.
Making Trijent Dam an HvH only map, and even possibly throwing HvH into the rotation (I'd suggest it be placed on a cooldown for voting every few rounds so we don't have HvH every other round), would satisfy players looking to play HvH (as said, possibly every few rounds if in rotation), giving them a good map to play said event on, and satisfies the players who consistently complain about how god awful Trijent Dam is at the moment.
I've been bringing up this topic a bunch in discord, but I feel it'd be better if placed up for discussion on the forums, as I'm sure there's plenty of people who have a strong opinion to share on Trijent Dam.