Yep Tech theft LRH was great at that.
From what I've accidentally bumped into and read; Luckily SOME of the old timers are digging up stuff that worked from the 1960s research teams. But are not calling it Scientology. It might be referred to as Allan's stuff or John McMaster's stuff or Creation of Human Ability stuff, Pilots stuff Paul's stuff.
I think if somebody wants to do that and it works for them and does no harm, that's great for them.