One school of thought would be to just capture the show as it sounded and not mess with it. Putting that aside for the sake of discussion, is there a way to de-emphasize that bass drum in post?
Well, if you stop putting it aside, then I can jump in...
If you were mixing a band, and someone in the band was sucking, would it be your job to turn them down?
"Dance with the ones what brung ya."
I'd say clean it so that it can be listened to, warts-and-all, or don't bother messing with it. An audience recording is a record of what it sounded like at that place, at that time, to those mics. If your rig didn't distort on the bass, then you have a proper capture of the event. Make it sound as nice as you can, but in my opinion, don't sweat trying to change it too much. Sure, give a shot, but don't stress if you can't "make a silk purse of a sows ear!"