It's a detail that people will either notice or they won't. I don't think anyone is going to look at the old claw and be disgusted by it, nor have they sacrificed any quality in King Claw's presentation just to shoe-horn in the reference. It's literally hurting no one.
At the end of the day, in this case it was probably so easy for them to add a little monument to the old Claw that they had no reason not to. The theming was already there, and it fits fairly well tangentially into the new theme. It would have been just a matter of keeping it instead of turning it into landfill.
Really, I see no reason to complain. If nods, Easter eggs and references are not your thing, they're not your thing, but they aren't hurting anyone by being there. I'll come back and agree with you when they come up with some convoluted excuse to force in references where they don't fit or ruin immersion, but for now, they're doing it subtly enough, so why not?