What is the controversy surrounding #takeaknee

[Rev. Rye]

You know, I understand that the term "virtue signalling" is out of favour because there's people who use it as an excuse to dismiss ANY sort of morality that doesn't involve being a racist creature from the Id, but is there really a better term for the sort of conspicuous, but empty, display of morality that does nothing but make the participants look better, like, among the many examples to list, insisting on players in a football game standing for the national anthem?