You should perhaps then look into Page with the Yardbirds where any tangible influence from "the blues" (man) would perhaps be more obvious.
More or less every musician from the 60s could claim influence from the blues, Chuck Berry, JLL but then that was the music that immediately went before them. Not so easy then to identify any influence as their career progressed.
Lemmy from Motorhead, biggest influence on his career (other than drugs)? The Beatles.
Go figure.
Pink Floyd is very much a matter of vibe, man.
I could never get into them, until one winter when I shared a house with a highly enthusiastic stoner. I spent about 8 months constantly stoned, with Floyd blasting out from his very expensive hifi system. I've liked them ever since, but would struggle to listen to an album all the way through if I was straight.
And of course, what we really want is good, sensible rock bands.
People who don't like Zeppelin tend to fall into two camps: complete ****s, and those with an axe to grind, such as the grumpy old **** I spoke to in a pub the other week who lectured me on Tom Waits and other unlistenable crap.
I don't like Pink Floyd after Syd. My main one is probably the Small Faces. I just don't get it at all.