In reply to Riad Benguella.

Thanks for chiming in. I see that you can edit them via template-switching mode now. Yeah, the UI will definitely need some work. :)

My point about doing it similar to CPT templates is that some theme authors would like the ability to create a specific content-level layout for the page template. For example, they might want to create a front page template that had all the blocks in place. Then, the user sees that in the post content canvas itself without having to switch over to template editing. Template-locking options would be nice for this too.

In talks with various theme authors and agencies in the past couple of years, I think this is what many of them were imagining the block system would let them do with page templates. And, maybe as we continue merging interfaces, this is what it will ultimately look like.

As block patterns have emerged, I see those as perhaps an alternative (better?) solution for that, just without the ability to lock the blocks in place.