The only negative vibe I've felt towards tech divers (or actually the philosophy, not the divers themselves) was the acronym DIR. There is no ONE right WAY to dive IMHO because there are many different types of diving. I think the DIR philosophy offers many good ideas for those engaging in tech diving especially where penetrations or depth is involved. I have absolutely nothing against the GUE acronym (and others), and have many dive friends who follow it. As a solo diver for 50 years who shoots video on every dive and does not penetrate anything (at least not while on SCUBA), I have my own philosophy of diving that works fine for me... but would be a disaster for a tech diving team.
I recently buddied up with Steve Millington for a fun dive and found his GUE skills to make him a fantastic dive buddy for me as a videographer. He was always out of the camera's view, and his finning technique and buoyancy control prevented any resuspension of sediment to blur my images.