Is it just me or is it less fun?
Part of the enjoyment for me is getting a guy on the school's all-time leaderboard. With slowdown, it's just less likely to happen because of fewer possessions. At least, with HBD, you can play in an extreme pitcher's park and tailor your team to win the 1-0, 2-1 games but still get pitching records. With slowdown offense, there are no records to get.
And, yes, I know overmatched teams, like UNC-A, should play it exclusively.