Irony?
When this site was originally built (and I'm about to date myself...) all most people used WAS mod_php on shared. We didn't have a lot of sustainable options. Which is why this is not something I'm [i]horribly[/i] concerned over. I mean, for most people, even on shared, the solution is "move to a different PHP processor." The only reason I didn't was that it would require a MASSIVE amount of work to rebuild apache with the right add-ons.