I didn't really take it as disparagement, more like gentle mocking?

And yes, that's exactly what happens to me. I sit down to write out a scene and suddenly it's five pages of dialogue and I haven't mentioned where anyone is or what anyone is doing, there's no body language, there's very little inner voice... Lately I've learned to just let it happen like that and fix it later. If I sit around trying to force it, nothing gets written.