Why was a defederation request post locked deleted and the poster banned?

There was a very recent post requesting a defederation with lemmygrad.ml.

The post was requesting it due to a large amount of anti Israeli posts and celebrations of the deaths of Israeli citizens both military and civilian.

I've checked the modlog in hopes of understanding why those actions were taken, but no note was left. I'd like to ask why those actions were taken. Thanks!