Yes I mean just use a cheek cell mucosa tissue growth as a substitute for the normal vaginal. Sounds reasonable to me..
I don't quite agree with that tbh.. I mean think of the medical potential. And besides, the thymus expresses a large variety of tissue proteins/antigens found all over the body. It's really just a question of selectively activating certain genes in stem cells to allow specific cell lineages to develop.
As I'm sure you know there are ethical considerations in pretty much all aspects of medicine. I don't believe that potential for bad should stop something if it's potential benefit outweighs the bad. Also these things tend to be title regulated.. Just look at licensing to work with stem cells.
Sorry, which company is doing the research you mentioned? I'm interested to look at their web page/any papers they've published