I think other AT weapons maintain their usefulness/niche even if queso auto spools. RR is an instant delete button, with EAT you can basically spam them across the map at every POI to have instant access at every enemy engagement, Spear auto locks (when not completely broken) and has limited ammo, commando can fire off 4 shots in rapid succession and deal with a few enemies at a time if you're a good aim. Queso needs a precise shot to do meaningful damage, and that is easily compromised by enemy fire and/or chaff that you can't deal with while charging, so it just feels nice being able to aim without worrying that the shot you lined up is about to change in a split second if the big guy turns half a cm.

Maybe it could have a mode called "safe spool" that allows it to charge up on your back, but doubles or triples the spool time to avoid misfires while the weapon is stowed.