While I can’t say for certain why (missing reason), it is possible this was due to someone reporting this a morph. She is already marked as a model who frequently posts suspected self-morphed photos.
You could just move this photo like all the other photos if you think it's photoshopped... Although you can't 100% guarantee it.
Is there a bit more explanation to this than “fake”
Well yeah, looking at the full pic it appears to be unquestionably morphed and/or AI-"enhanced". Provide a link to where you got it from if you want to claim otherwise.
Anastasia Korableva. This was the pic. Look at it closely and tell me you think it's unmodified.
This pic has reached an high score in few days, so I wonder why it was deleted since people enjoy it. You can see that a muscled chest and also traps, so I think there’s enough of muscles but maybe I’m wrong