I think now that extensions are out, and distros can start using them again, Ubuntu will make a comback.
Ubuntu doesn't even come with gnome-shell installed by default, why would they profit (much) from this?
I'm just speculating here, but it may well be the cause that John Haught said something under pressure that didn't accord with the teaching of the Catholic Church, and now he doesn't want it getting outthere.
If his job were to - as you speculate - rely on him remaining intellectually dishonest in public, I don't quite see how that's a redeeming factor..
Not to mention the utter stupidity of having newbs search for programs that they don't even know exist instead of a nice menu organized by category.
I am not sure if you are aware or not, but gnome-shell does have a menu organized by category. Activities->Applications.
I find myself actually liking gnome-shell once I got over the initial "shock".
"The one charm of marriage is that it makes a life of deception a neccessity." - Oscar Wilde