This is missing the two main server vendors who are taping out at the moment, Rivos and Ventana. Rivos at least are targeting the highest end performance.
Yes, but "taping out" is still a ways from "actually exists and you can bench it."
The claim in the article is that RISC-V is somehow inherently unable to compete with Arm because of all sorts of missing architectural features. Yet there are server vendors who have those architectural features already and will make chips available fairly soon. The claim in the article is just wrong.
are there benchmarks?
If you sign an NDA with them, I guess. Eventually you'll be able to buy the chips & benchmark them yourself.
So, eventually we’ll be able to say that these chips are actually available. But right now, they are not proof of anything.