It's possible that this project was created as a sort of L8+ engineer/manager retention program. There's been some reporting that high level execs have been leaving GAMMA companies for blockchain/crypto projects with high payout potential[1]. I wonder if Google is heading in this direction to toss these people a bone with the hopes they'll stay.
[1] https://www.nytimes.com/2021/12/20/technology/silicon-valley...