a lot of negative reviews were all added at once, of course there was a sharp drop
there are still positive reviews coming, this may go up a couple points. even if it doesn't, this is where literally all her fans knew it would end up based on Katy's history with critics, so the celebrating is stupid.
If you can only feel good about your fave when someone else's gets a meh review
i feel sorry for you. Very few albums are universally acclaimed, and Katy does have some very positive reviews, so clearly this album has divided people.