I've learned a couple of things.
First, on my 32 bit system (if that's what its called), lyx 2.05.1 works perfectly. So I think it could be moved to the repositories.
Second, Lyx doesn't use too many classes, so tetex if probably just as good for lyx users as is texlive. So, especially because of its huge size, I think Vector has correctly continued with tetex. People who use latex a lot will probably want texlive, but if so, they can get online and download just the elements of that program that they need. That is basically what I have done and so I will probably stick with my downloaded medium texlive installation. But, frankly, I wish I had not started bothered with texlive in the first place. Lyx works just fine with tetex and tetex.doc loaded.
I thank you for all you do for us lyx users.