Apologies, I meant my point to be tangential. I agree with your general point. Our deployment pipelines go from build to prod though. With a general cadence on my current team of less than an hour. 6ish minutes to that is not a concern.

Even when I was on teams where the general cadence of getting changes out all the way to prod was on the order of a week, we still had changes getting to our beta environments in less than an hour. And that was on a team that wanted mutation testing, so we had it.

Edit: So my point was team mates that were worried about the 6 minutes added by mutation testing there, were the ones that would commit and then constantly refresh the page so that they could "approve" a change as it goes out. I pushed for all approvals to be automated, so there was nothing for them to watch.