It's interesting that you mentioned Max Martin. I immediately thought of the new Adele single Easy on Me as a counterexample to people wanting 150-200 production tracks on a single song like you'll find on Max Martin songs. What's interesting is that Max Martin worked on the album 30 but is not listed as a producer on that song, and I think it shows. It's stripped down and you can hear the rawness, squeaks, and rasp of Adele's voice. Contrast that with something like a Max Martin produced Ariana Grande song (https://www.youtube.com/watch?v=cBDJDZAo41c) or Katy Perry, both who can sing extremely well on their own, and there's a stark difference in production taste. Something like Rihanna's (ft. Kanye West and Paul McCartney) FourFiveSeconds would be impossible for Max Martin to produce (yes it has vocal and instrumental processing and tuning on it but it is very stripped down).

Max Martin certainly has a nose for hits, but it's almost self-fulfilling. When he's producing everything, he sort of dictates what people "like" and other producers follow. I quote like because what's played on the radio is not necessarily what people actually like, it's what they're made to like through various marketing schemes. So I sort of balk at the notion that people want Max Martin style music. It's just what they're given.

It's also a bit misleading that people have been recording this way since the beginning of pop music. Yes, lots of takes and doubles, but these Max Martin and similar production style DAW sessions have literally hundreds of tracks that actually get mixed down into the final song.

https://www.soundonsound.com/people/sandy-vee-recording-katy...