Version 1.2 merges a pull request that detects whether the post contains blocks and then disables the wpautop behavior in the classic editor to prevent it from stripping the tags.

That isn't going to help third-party editors and plugins maintain support for editing Gutenberg content (one of the primary stated reasons for choosing the insanely-convoluted comment-based "structure" in place currently). Arbitrarily enabling or disabling wpautop is as breaking to plugins and third party tools as switching data formats to something universally accepted, like JSON, would be.