What is your range like survivor voting people off the island? If anyone ever walked up to me at the range and said "well we came to a vote, you have to move your gear all the way down to the muddy end of the range * * *.
It was in a PR course, not at the local range, and there was nothing planned about it. Just sort of a spontaneous thing where several non-MB shooters were requesting to be re-positioned and/or were already up and moving their rifles and gear trying to get lined up on a firing point without MBs on either side of them. Someone (not me) asked the instructor if it wouldn't be simpler for this particular period of shooting (400-yd targets) if the MB guys "moved over there," which was about 20-25yds further down the line.
Okay so, admittedly, I *might* have been just a wee bit over the top in describing the condition of that end of range ...

It had rained earlier in the day and there were muddy spots, but it wasn't
that muddy. And everyone brought ground mats and many of them had plastic tarps as well. Instructors had extras of long foam mats if anyone wanted one. It wasn't like any MB folks were consigned to shoot out of a pool of water. Plus, despite what's been said on this thread by the MB fans, the guys with the brakes were fine with it. No one asked for a refund.
Not sure why you have such obsession against muzzle brakes, we get it you don't like them, that doesn't mean everyone has to cater to your needs.
Dude, I have no issues with MBs in the tactical carbine courses and I've seen a lot of students running braked 5.56 blasters. Those courses have you doing a lot of moving-&-shooting drills and not so much of the static shooting where you're pronged out for long strings of shots at distance.
But for PR, I'd rather not be developing my long-distance skills next to someone's noisy, blasty recoil-crutch and for which, frankly, I've seen zero evidence that use of the MB improved the user's accuracy at distance, which is what you're attempting to achieve in said PR courses.
By the way, nobody shoots from a bench in the PR courses. This isn't BR shooting. It's about learning precision-shooting skills by firing in supported & unsupported positions, all kinds, including improvised practical field-positions, such as are employed by hunters and snipers.
Yeah, as always, just my opinion ...