So, "restricting freedom of speech in any way" is actually "restricting freedom of speech in any way unless during working hours and influences working output".

So, "restricting freedom of speech in any way" is actually "restricting freedom of speech in any way unless during working hours and influences working output". This revised definition now supports the use of DEI in the OP article. I will take your word that you'd be happy with increased policing even if it affected you personally, but I doubt that if you actually experienced it that you would be happy with the outcome.