I understand that Gorillaz is just a canvas for Damon to collaborate with artists and do some crazy shit, but it does feel like this album is a lot more disconnected with the other ones.
Like, I can't really picture the band playing a lot of these songs, if that makes sense. Not saying it's a bad album at all, but...yeah I don't know. It's hard to explain it. The sound continues to evolve, but at what point does the band just become a brand rather than an actual (cartoon) band.
During Plastic Beach they had a reason for the weird departure, because there were really only two members at the time. Maybe I'm overthinking this.
I think Damon basically stopped caring about the cartoon band notion in relation to the music after the first album haha. This one does sound different but I think part of that is just the newness. It's still a dark and weird blend of electronic/hip hop/funk/gospel, with a wide variety of collaborators unified around Damon, and a sort of creepy and cartoonish narrative to the album. The biggest difference I think is that's it's more heavily weighted to EDM, like the self titled was more dub/rock, demon Days was more r&bish, and plastic Beach was synth pop.
I mean, maybe I'm wrong and it'll never quite fit in, but I'd give it more time to sink in. I suspect it'll feel "Gorillaz" sooner or later (if a 5th album comes out people will inevitably say "this sounds nothing like Gorillaz! Why doesn't it sound like Humanz??)
But I think Damon basically just uses Gorillaz to do something different when he's feeling burnt out. He was tired of doing the slower paced stuff like his solo album and the new blue and missed pumping people up at live shows, so he was like "fuck it, I'm gonna make a party record". And since Gorillaz already has a huge audience, particularly in America, it just made sense to use Gorillaz to that end.