The stated belief that the dive industry does not support a certain segment of the dive community may be a pretty good indication of where the vast majority of the dive world is focused.
In Colorado where I live, almost all of the shops cater to the warm water diver. Only a handful of shops (and we have a surprisingly large number of shops) carry any tech equipment, and I know one shop that decided a couple of years ago that it would only carry jacket BCDs. Despite the fact that all local diving is pretty cold, few shops carry dry suits. If you decided (as I did a few years ago) that you were interested in tech diving, you had to do a real good search for an instructor. If you want to see what I mean, go through each of the tech agencies and do a search for tech instructors in the entire Rocky Mountain region and see what you find.
I am currently spending a month in Florida, and although it is very different here, it is not as different as you might expect. A little objective research will show this. Do a web search for the various wreck diving possibilities north of Fort Lauderdale. You will easily find a wealth of them, with many nice dives within the deeper recreational limits. Now look at the schedules for the various dive operators, pretty much all of which are online. See how many are scheduling trips to the deeper recreational sites. You will the same bland, shallow, easy sites listed over and over and over and over again. Want to an easy dive on a shallow, overturned barge called the Sea Emperor? You can do it almost any day of the week. Want to do one of the deeper interesting wrecks? It's probably not going to happen unless you personally get a group together and charter the boat to go there.
The dive industry does not tend to support that kind of diving because, oddly enough, it wants to stay in business. Dive operators do not carry certain kinds of gear because they do not want an unmoving inventory cluttering their stockrooms and their cash flow. (I was just in two dive shops in the Pompano, Florida area and saw mostly jacket BCDs on the walls.) They don't schedule the more advanced dives because not enough people will sign up for them and the boat won't run.
So, no, the industry does not support the more advanced diver because they are not perceived as providing enough income. A single tech diving spending even as much $5,000 annually does not stack up against a hundred divers spending hundreds of dollars annually. Most companies that make and sell tech-type gear (like Dive Rite) require more minimal sales for its vendors than most shops can count on, so it doesn't make sense for them to form a relationship that is only going to lose them money.