Are you referring to the style of shooter this is trying to emulate, or just the general quality of the game itself? Cause there are tons of "boomer shooters" on Steam that are incredibly good despite the "dated" engines they often use. The game before this, Ion Fury is using the Build engine, and looks insanely good considering how much they're pushing the engine. Not sure about this new one though.
IDK, I love my Red Dead Redemption 2 and Alan Wake 2 graphics, but gameplay comes first still for me, and "boomer shooters" are pure classic fun, especially if they have excellent level design. This looks to be in the same vein.
Edit: actually I remember the demo for this one being pretty heavily criticized for not being up to polish compared to Ion Fury and other recent "boomer shooters." So you may be onto something. Release date might be too soon with this one. Ion was made by a different team, Phantom is made by Slipgate which has a pretty meh reputation amongst New Blood fans. Color me skeptical now as well. I thought this was being done by Voidpoint.
It looks like that's intentional. It's trying to capture the vibe of games from the original Half Life era and seems to be doing a fine job from what I can see.
I actually thought the same while watching this trailer. I hope some of it is just an issue with how it was cut rather than the game itself but as always, better wait and see how it turns out.