Should we? As in my original description/comment on the pull request: "Just threw in comment indicating deprecation of the 'object' variable, as there may exist custom validators which are being altered in to do... things? Dunno... Just seemed like a good idea at the time."

I know that this approach of "injecting" validators/submission handlers had been used for other purposes at different times. I'm not aware of any of our stuff doing this, but elsewhere in the community... Shrug?