Well.
I'm not enter in the discussion if they are or not prog.
I Think they are. And I think they made wonderful music.
Despite their musicians are not vituoses, but can anybody deny their talent? Waters with an econimic bass but all is there. And what about his dinossaurus voice?
Wright made climatics "beds" to their sound and had a very beautiful voice.
Mason worked with their cymbals majesctically.
And finally Mr. Gilmour. Never a zillion notes per minute, byt one of most beautiful sounds of a guitar ever listened. And his voice is a trade mark in the sound of the 20th century music. Wonderful!!!
My fav album are DSOTN and ANIMALS. And the worst is FC. I like the 2 Gilmour era albums.
They are my number 2 on my Top Prog Ranking.