> Our hypothesis is simple: session logs are now the most important artifact in software development, and should be stored alongside the code itself in the repository. [...] Humans can more easily understand and verify what was built and why, providing a provenance layer that leads to far faster review periods.

Did they understand the coming issues (reviews), but just came up with a completely wrong hypothesis (session logs)? I mentioned it in another comment some time ago, I think the biggest issue in VCS software arises from the combination of two separate ones...

  - A (technical): Reviews are currently not part of the VCS

  - B (cultural): The amount of merged source code currently grants for higher authority/ownership of a code base than the review/verification of that code