Baker, yeah, I doubled MAX_ENT_LEAFS in Quakespasm to help with that and other cases as well: an elevator in fort_driant-fullvis.bsp, and a grate (func_door) in jam1_ionous.bsp. There's still a rotating decoration in RRP's start.bsp - the blue pipe thing on the second floor - that is visible from something obscene like 20k leafs, so MAX_ENT_LEAFS=32 isn't much help, and IIRC you can still make it disappear if you look at it from the right spot.
Found the comprehensive discussion here:
viewtopic.php?t=2376&postdays=0&postorder=asc&start=23 , and later I might try MH's idea there or compare with what's in the latest RMQEngine, but I didn't want to try making too many higher-risk changes in one QS release.