Chef RRs mime, shoving is valid cause?

Byond Account:
Character Name(s): Silent Knight
Discord Name: Noobsky#6958
Round ID: 26207
Griefer IC name: Hecarim
Griefer Byond account (if known):

What happened: Went into kitchen because all the food that was available was mystery soup, chefs broke every bone and tossed me out. Atmos tech gets shoved, decides to try and kill me, so I crit him, chef decides to kill me. I firework their kitchen, and they RR me. Admin already looked at it and said I was valid, and that “shoving is grief”. Could someone take a look at this and give me a more thorough rundown of why that’s allowed? Horatio22 is the admin involved.

This was handled in-round. Grief patrols are for incidents that occur when admins are not online, not for admin shopping.