@Xystus
If this was sloppy cut with raw edges (instead of clean round hole cut) it would tear more with low force. I mean this is manga were author haves like 2/3 panels max to show it. So not sure what you expect, pretty much everything outside of some books would do this same way.
Rape was never his intention and he even pointed out that he wanted to take peeping like photos, so calling him rapist if off. We have correct terminology for this and here it's sexual assault (touching) and blackmailing. Rape is forced sexual intercourse which he never tend to do. So yes he is creepy shady character, but also not just plain shallow rapist (he is in more grey area) and author plays with it later on.
Here this scene was used more to show Emi trauma and will later take bigger part in both present and backstory for all MC girls. I mean there are reasons why they are with MC outside of his power.