Sure, I can see that. Trust level names and descriptions can’t be edited, though, so I’d suggest to those people that they create another group and include tl4 folks in it, and give it a nice name, flair and description that suits the community.
I did notice something weird about trust level groups on the about page - not every time I looked at it, but the group memberships were not showing up correctly. Sometimes I as admin am in tl0 even though I am in tl2 nominally. It’s also a bit weird that I show up there at all because I am admin so trust level is irrelevant. But that’s a idiosyncracy with discourse trust levels and how they work.