That was my first reaction, too, but then I had a second thought. Google is going to do this work on this in-tree or out-of-tree. If it is done in-tree, then th

That was my first reaction, too, but then I had a second thought. Google is going to do this work on this in-tree or out-of-tree. If it is done in-tree, then there is a possibility that it will lead to core improvements that would benefit all backends. If out-of-tree, those are guaranteed to happen. I don't think it's a slam dunk, but on the balance it could make sense. And once it is in-tree you can actually validate this hypothesis by seeing the impact (or not) of contributions from Google.