I imagine because it _is weird_ to request employees to anonymize in public to prevent potential violence against the employees.
Of course, it is a sad state of affairs that it could attract violence. Someone is always going to disagree with what you do regardless of what it is, but it's a shame that that itself leads to violence.
A few years ago There was massive fuss when BT started putting the company logo on the carpark stickers.
And some "engineers" (linemen) have been assaulted by anti 5G cranks in the UK not sure if the same has happened in the US
The really disappointing thing is that I've heard some medical staff get this advice to protect themselves from angry COVID-denyer protests outside hospitals.