Once you guys take off your stan glasses you'll see that this wasn't a good lead single.
But it's good enough to keep me occupied until LG5.
Well this is kinda subjective, I truly find the song amazing! I also found ARTPOP terrible. Opinions are opinions. I like PI more than Bad Romance ,for instance. But BR was huge and iconic so my opinion doesnt really matter.
I'm annoyed because it isn't getting much acclaim nor success even tho I love it. Also I'm annoyed at Gaga who still tried to make the song as worse as possible on purpose. It could've easily been radio friendly and not grating for listeners
So I think I nailed why people don't like it, and then grow to love it:
It's been proven that people get a "high" listening to pop music because you can predict what is coming next in the song. When you're right, your body produces more dopamine.
Perfect Illusion defies a lot of typical pop tropes. It builds on that first "chorus" and then goes back to the next verse. The key change comes out of nowhere on first listen. You expect the adlibs to be at a lower tone than the bridge vocals. Not to mention her belting, high energy thrown in the whole time as opposed to the easy listening we come to expect.
Once you start to understand the structure of the song itself and can follow along in your head, you start to really embrace the pop elements that remain.