Apparently ANDI doesn't agree with you ... the first paragraph from the ANDI CSU course description ...
ABOUT THE COURSE:
ANDI is a world leader in the development of Technical Diving Training Programs. The ANDI CSU (complete safe-air user) program is a vital step on the technical diving education ladder and is the foundation for the diver's technical skills development. As such, the CSU course, is an important step in expanding a diver's knowledge beyond the standard recreational levels offered by other diver training agencies. The ANDI CSU program offers high quality course content, which although technically demanding is realistic in it's pace of presentation and the introduction of technical diving concepts.
http://www.scubadivetraining.co.uk/andi_advanced_nitrox.htm
As to the rest of your commentary ... when people come here with questions or comments, it is important to attempt to answer them in the context of what you can determine about their level of training, goals, and purpose of the thread. Responding to a query or concern about a recreational level class with information about technical diving may impress upon someone that you are knowledgeable beyond their level, but it rarely answers the question.
And ANDI CSU does not equate to the TDI course that was originally brought up in this thread. It is more like a standard nitrox and advanced nitrox class rolled into a single course.
Furthermore, you took my own comments out of context in order to dispute them. To quote the paragraph you are "disagreeing with" ...
Where in there do you see me saying anything about agencies that are geared to technical training? FWIW - ANDI, GUE, IANTD, NAUI Tech, and other agencies teach entry-level classes designed to help divers who want to get into tech training, but that are not in and of themselves, tech classes. These are not the agencies I was referring to ... nor those that offer courses comparable to the one the thread originator was talking about.
... Bob (Grateful Diver)