I play with both doom metal and folk/rock bands. I almost never, ever have PA support in either of those cases. In some cases, we've had to bring a PA.
Neither Sevendust nor Megadeth are doom bands.
People going to stoner doom bands expect volumes that are very high even by rock, punk, and metal standards.
I'm actually not sure what this discussion is even about anymore. The OP was about a band killing the room and somehow it's morphed into this meaningless stoner/doom thing. Play as loud as you want WHATEVER your chosen genre but at some point you're limited by your PA and the acoustics of the room. You wanna say "it's gotta be THIS loud, shag the room and the PA" go right ahead....ultimately you're only doing your music a disservice. I only mentioned those two bands (and I could list a bunch more I've worked with) because they play loud (loud transcends genre) but are pro enough to.....yes, here it comes again, not to kill the room or clip the PA.
So what's more disappointing only having it be really loud (as opposed to mind numbing loud) or have incredibly awful sound? If you've got the room and the PA where you don't have to choose fine but if you do the choice seems obvious. Dude, you know this. I've read a lot of your posts over the years you're not a dumbass by any means. What gives here?