Well....it wasn't intended to be a loaded question up front, and I didn't plan on posting my thoughts, but since you asked:
PADI and tech diving just don't seem to mix. PADI is soooo recreational minded, not that that is bad, just surprised that they are willing to get into it. For instance, I am taking the divemaster program through PADI, one page of the manual is dedicated to why homestudy is available to open water students: because they don't have the time to come to classes. Sure, it makes sense initially, but the fact that someone who has never scuba'd before can try to teach it to themselves w/o any instructor supervision, or w/o even being there to ask questions... You get my point, that PADI is more concerned with making learning easier and more convenient to the public, but possibly at the cost of a sub-par education. Can you imagine a homestudy on tech diving?
Also, they are so big that the legal consequences could be quite staggering if they have problems in such a risk-filled segment of the sport. Just my humble opion.
Thoughts?
-Mike