I think Deep Purple did more prog than Queen. I also think they don't belong here as a prog artist. They did some very interesting things. Jon Lord was a decent keyboardist and the interplay between Ritchie Blackmore and him was pretty adventurous. Ian Paice is a completely underrated and ignored rock drummer but they still don't belong here. I find it very strange that Queen and Uriah Heep are considered prog by the admins here. I never thought of Queen as anything but as a hard rock band with some theatrical elements. My friends and I from the 1970's thought Uriah Heep was a poor mans Deep Purple.
I doesn't matter to me other than the fact there are other bands who are working now, recording now can't seem to get added, get their music reviewed and exposed to people who might like it because some dinosaur band who will never do anything again hogs all the attention