errr.... thats a pretty big hole. but, its on a pretty flat area. if it were mine, i'd patch it and see what happens. what else you gonna do?
does is sit on the floor (with pressure on the bag)? or does it go in a vdrive hatch or something (with pressure on a sidewall, not the bag)?
in a hatch, i say patch it and forget it. walkway, etc. you may have a leaky sac.