Well if the reward was worth the difficulty. Pre-nerf Pharos had a nice flavor for the HM dungeons but the reward was not worth it at all. I'm sure even unique titles, minions, extra tomes etc would have been fine. One quick implementation would be to give the pty a choice to sync down to the required ilvl and in turn they will receive additional rewards. This would at least force the pty members to perform the mechanics which can be easily blown through with high ilvls.