I'm a bit surprised anybody with DevOps in their name would be unclear about the benefits of having specific roles devoted to what might seem to the uninitiated like just some tiny corner of the development process. Past a certain scale, things can't be covered by just having anybody pitch in as required and everybody collectively muddling through.

Be as surprised as you like

It does not surprise me that people shitpost calling an expert "moronic" without any counter arguments.