Your quote:

Let me get this straight, you do not know how to set up version control, therefore knowing how to set up version control is useless?

What I said:

Professionally, I've never set up version control.

I also never said it was useless. In fact, I use it at work AND at home on my own projects religiously.

However, I don't feel a need to ask about it in an interview. If you haven't used one you will be soon and if you know how to manage one it's just gravy. I might not even ask it's so inconsequential. Continuous integration is the same.

And no matter how you spin it, it's not software engineering. Not in the ballpark, not even the same game.

It wouldn't be useless but it could be unnecessary. I don't anticipate ever needing to set up version control, unless it's my own business. Any place I work will almost certain already have it set up, and if not, someone else will be tasked to set it up.