Airation would see about 50+ ascents on a nice weekend if it were bolted, but having it bolted would change its character significantly, if not spoil it for eternity.
To be fair, plenty of chicken shit climbers in both sport and trad. Shit, I count myself as a member, have been since 1993.
I led NMD on trad gear and the one original expansion bolt in '95 or '96. I think I placed one fewer piece than the number of lower bolts. I have also eyed and TR'ed the direct start for a number of years. By my fuzzy memory, it goes at about the same grade but solid gear placements in the granular horizontals up the nice steep face may prove challenging and far in-between. It probably been led this way though. Lots of good climbers out there who care not of the "profound" differences between trad and sport.