[dokein]

Usually, if it's a letter that's signed by the C-suite and reviewed by 5 layers of internal and external PR, it won't say anything interesting.

This is because, to be interesting, it has to be something unexpected.

But the job of the PR is to minimize disagreeableness.

It's rare to that something is both unexpected and minimally disagreeable. A sudden advance in medicine resulting in a cure for cancer would be both (but even then, if it were e.g. an mRNA vector some people might find it disagreeable). But a company's position on a technological advance almost never meets both [Google PR: "Google also supports cures for cancer!" Yawn.]