I'm talking about the eight pointed star being present on Tzeentch units. That isn't a problem. There are plenty of Monogod TT units that have the eight pointed star present on their models.
Blood (and also Skull) crushers: (2nd Pic is WH3 concept art btw)
The Maggoth Lords:
The issue is the lack of a unique model for Tzeentch, not that the universal symbol of Chaos as a whole is present on them. Any discussion and criticism that goes toward something that is not an issue distracts from the actual issue, unique models for Tzeentch mortals. Sure, Tzeentch Warriors should have Tzeentch imagery on their models, but also having an Eight-Pointed star on some of them is not an issue.