I think you're right.
Vue and TG can do the same, but the way things are handled is indeed totally different as far as I can tell.
I agree with you about the training. (but also an official manual/userguide should help out a lot, but every frequent visitor here knows the shameful story about this which I'm not feeling much for to dive into)
We at NWDA have been thinking about training for quite some time. There's a lot of stuff we could cover and offer, but the hardcore key stuff to get professionals interested is a big hurdle.
I, for instance, have no clue about TG2>Max or TG2>Maya workflow. I know how to set up geometry export and importing that in Max and that's totally it.
Maybe that's enough, I don't know.
I can tell you that in the near future a lot of useful resources will be available.
First of all I've written a FAQ which should become available soon. Logically it will cover the FAQ you see (too) much here on the forums.
Secondly, I'm working on a personal website for my portfolio, but I'm also planning a blog-section which will contain tutorials.
I already have a couple of dozen items listed so with a weekly update I could almost keep it going for well over half a year.
Hopefully in that half year much will happen with TG2, but I don't know.
I seriously could use some help though with building that site so I think I should ask help here...
Cheers,
Martin