That's actually a really good point. Though sometimes words are of acknowledgement are equally important. Likely not here though. I'm sure they'd rather take the money ;-)
Side note: I'm actually so proud that my company, Datto, has also been sponsoring Let's Encrypt for many years, and that I was the one to suggest it. It's not platinum, but it's still $50k per year.
yeah, words of encouragement can be great, but i don't think anybody at LetsEncrypt is in any doubt that Google is happy with the work they are doing.
also, i get the sense that getting wider adoption for FIDO outside of LetsEncrypt is a bit of a goal, so having a third-party announce support for FIDO without referring to it as "the LetsEncrypt protocol" is kind of a win for the FIDO people.
Side note: I'm actually so proud that my company, Datto, has also been sponsoring Let's Encrypt for many years, and that I was the one to suggest it. It's not platinum, but it's still $50k per year.