Wow I had no idea I was about to start a faction war... XD
I'm sorry you are getting exposed to the drama that exists in the scuba industry. It isn't good for new divers to be exposed to it, but since the fire has started, here's some more kindling.
When I started diving, GUE was denigrated by a number of instructors who I thought were "experts". This convinced me for years to not take fundies.
Biggest mistake I have made as a diver. I'd be a far, far better diver if I took fundies early on, and I would have spent a lot less money buying and trying gear.
I'm not a GUE diver. I took fundies and got a rec pass. I'm not working on a tech pass, as I have switched to sidemount for 99% of my diving outside of teaching open water (where I have to be in the same configuration as my students) will be in sidemouont.
There are some really great people at GUE. At least in Seattle, I can say without hesitate that they are a great bunch. While I don't know the entire GUE community in Vancouver BC, I get the same impression. I've heard of negative stories of GUE divers here and there, but in my area, they have all been super friendly and supportive.
So when I took fundies, the best advice I received was "you don't have to drink the Kool Aid, just go for the skills." I understand that GUE has a system that is meant for a specific charter. And that's okay. That charter doesn't apply to me, so I pursue tech training through other agencies. But that doesn't denigrate the high value that anyone taking fundies will have. And if you take any 2 GUE divers, just by knowing their certification level, they know how to dive with each other. Outside of the DIR sphere, it can be a goat rodeo.
GUE sells training, not certification. It is difficult for many people to accept that as that goes against what they've experienced or what they provide as instructors themselves. It can be hard for people from mainstream agencies to face the hard truth that they are not as good as they think they are.
I made it to PADI IDC Staff with poor trim and other issues. I was overweighted. I had a lot of bad habits that were painful to break. Fundies was an ice cold shower. I have had to work hard to break those habits. GUE fundies gave me the foundation to do so. GUE fundies is the single most positive source that has improved how I teach all my courses. I'm not a GUE instructor. I will never be one. But I am grateful to the knowledge and skills that I acquired by taking the course. I highly recommend fundies to anyone considering tech diving or becoming a pro with any agency, in the future.
If you take fundies, you will not regret it as you'll save yourself a lot of issues later on.