My works HR department got sick of having people use "logic" and "evidence" to argue against their policies. After kicking a few people out the door and generally saying you can't talk about this at work anymore, nobody talks about it.
Many times when folks who tell me they're presenting "logic" and "evidence" in a debate they're personally invested in there's grave flaws in both their logic and evidence presented. The freedom to intellectually debate HR's policies in a company is rightly limited, you can call it "censorship" but endless uninvited earnest debate about policies isn't really wanted or needed in the workplace.
At the end of the day, you can always choose not to play.
edit: I dont want to name the policy as it may identify the company. It was a particularly idiotic one though.
Luckily my workplace was mature enough to decide to leave those topics for the pub and social media so we didn’t have to be told that.