I don't think you were over romanticizing the period. There are quite a few examples {you mentined the Floyd on "Money", I mentioned them in 1968's "Saucerful of secrets"} of artists using
something as some kind of metronomic device, I mean, Kraftwerk were around before disco, On Donna Summer's "I feel love", the rhythm is entirely made up of a metronomic synth. The thing is, these examples are way in the minority compared to
straight drums or percussion and often fell more into the realm of experimentation.
But popular music has long benefitted from isolated experiments or accidents flicking on a light in someone's head and going on to become
the standard or well used. Examples include the compressor, the mellotron, the synthesizer, close miking drums, distorting the electric guitar, indeed, the drum machine. I guess in retrospect, sometimes their stories can be made to seem quite romantic but they didn't start that way.
Greg_L once made a point about a drummer's pride in their kit and that going a long way towards explaining why so many would frown on using say, a suitcase as a kick drum. The same went for a lot of them using clicks. For some in the disco era, coming out of the funk period where groovability within timekeeping was a source of pride, having to use a click would have been almost insulting. Others were prepared to give it a go.
It's not a case of "oh it was so much better back then," rather, all kinds of things used to happen which have led us to here and now.