I mean, if there's any time where you want to be clear about the distinction it would be now, right? What people who really care about Rust need to know now is that it will prosper outside the control of its corporate backer.
Telling us the Mozilla still supports Rust (at a time where it's by definition true that it is reducing its support) is communication that should come from Mozilla, not rust-lang.org.
Could you say a bit more about what makes you read it like this? It is from the Core Team, one of which is employed by Mozilla to work on Rust, and one of which was laid off and contributed to Rust in their spare time. (out of 9 people)
Mozilla is an important part of this transition story, which is why we included the stuff about them; there's no way to ignore the intellectual property owner when discussing how that property will be transferred to another entity.
>Mozilla and the Rust Core Team are happy to announce plans to create a Rust foundation. Our goal is to have the first iteration of the foundation up and running by the end of the year.
I read this as "Mozilla is currently still largely in control. This is the moment where they will cede to the new, more independent, foundation." But the fact that it follows "Mozilla and the Rust Core Team" with "our" may taint the rest of the use of "our" throughout the post for others.