I hope this is a joke. Safari is easily the worst of the big four, and view web standards as suggestions that are to be ignored at any time. My company doesn't support IE anymore, but safari, not edge, is the new hated browser for web dev for sure.
And for the argument of Safari is the hated browser I’m more than okey with that at least they still test for it (I feel sorry for Firefox because the oups we didn’t test blablabla