I am in favor of regulating this airspace, calling for a tight ATC clearance for this area...however special radar (to the ground) remote com outlets, and more controllers would be required.
I've flown over this area in airliners (as pilot) and shaken my head at the corridor concept.
There is a similiar corridor over the top of KLAX and I flew there one time and swore never to do it again. (small plane)
as a former cfiimei and current airline pilot, corridors scare the hell out of me.
I do agree that all commercial traffic should have TCAS and all planes should have mode c transponders ON.
I also encourage all pilots to have all lights on in the daytime as well as night to enhance collision avoidance.
and for descending low wing planes, always CLEAR below before the descent...often overlooked.