I specialize in Amazon Redshift.

Speaking for and only for Amazon Redshift, as I have little knowledge of other AWS services, I hold AWS's blogs, messaging, Support communications, TAMs, the lot, as relentlessly positive and to my eye deliberately and knowingly obfuscating all weakness. I regard information from AWS regarding Redshift as safe to read when and only when you already know what's going on / the underlying truth. Otherwise you will be misled, and to your cost at AWS's benefit.

By the sounds of it, the messaging over this change in data policy is the same.