I like this, because it forces the audience to come up with specific statements, but it doesn't seem to teach them to recognize WHEN they need to be more specific.

I'd say it's a very good precursor, to help them see what a specific statement is, and why it's useful. It's actually my favorite from this whole thread for that, so I do think it's a really cool idea! :)

(I'm finding it neat how often this thread is identifying, for me, things that ought to be taught BEFORE you even get in to the core 5-second-skill of "recognizing when to be more specific". It reminds me of Eliezer's comments on the Sequences growing exponentially as he realized he needed to establish X before going on to Y, and then realizing he'd also need Q and K)