As long as they let the training / information speak for itself then I'll have no problem. Like other aspects of life I do seek other points of view. What I have a problem with is when people try to convince me that their point of view is the only correct one. I much prefer to decide that on my own.
I think you'll find neither UTD nor GUE is like that in the least (again, it sounds like all the internet drama may have done the DIR system a disservice in your case). I think what you'll see is that behind all the protocol and technique, there's a real and substantive reason as to why it is the way it is, and why it's considered important to the system as a whole. All of my instructors have been very good about answering questions, explaining rationales, and discussing the backgrounds and decisions behind the practice.
Either way, once you have an idea of what DIR is about, you'll be in a much better position to decide whether or not you care to look into it further. And hey, as you say, it may be that it just doesn't float your boat, and that's totally fine; but now you'll know from firsthand experience instead of internet hearsay. And even if it's completely oil and water, I bet there will still be some beneficial skills and education to pick up which will make the class worth your time. The price may seem steep, but what's provided for the money is quite surprising compared to the typical scuba industry educational model.
Enjoy the class guys, and feel free to inquire if you have any questions about it!