Keep in mind it’s not an all or nothing thing, they’ll assign percentages of fault. It’s also important that they name name basically anybody involved because the others will try to blame Google to shift fault off of themselves.
Effectively you want to name everybody possible so that they all fight it out.
It seems likely biased as well unfortunately if they let teams decide on their own what to use. I would wager that teams who on their own switched to Rust are probably teams that were already productive.