Zombified Piglins (From hereon noted as 'Pigmen' or individually as a 'Pigman') are not spreading their hostility the way the Official wiki says they should.  Hitting a Pigman will cause it to become hostile and a few of the surrounding Pigmen to become hostile. But not all of them in the surrounding area.

In an example there could be say 15 of them in a 15x15 area. I hit 1, and maybe 5-6 of them come after me.