Yeah that's a good point. I've always thought pages should, then, specify if they're a document or an app. If you're a doc, you use all the various semantic tag

Yeah that's a good point. I've always thought pages should, then, specify if they're a document or an app. If you're a doc, you use all the various semantic tags. If you're an app, just use div/span. Maybe the spec could have something like that, app mode and doc mode.