It's not authoritative. But in order to get a truly complete picture of CPU performance you've got to do all sorts of different workloads and between the benchmarks and real world performance you get kind of a muddle of:
"In highly threaded apps, AMD's high core CPU's stomp everything, especially for the price. Single core performance still belongs to Intel."
And then from there individual users need to figure out which CPU's are best for their use case. And a lot of users kind of want it summed up instead of sorting that out.
That aside AMD has a really good product this generation, compared to Bulldozer and it does hark back the previous decade where AMD's CPUs were truly viable competition to Intel's.
I'm not sure how Passmark derives their scores exactly. But based on what I'm seeing for all sorts of reviews is that Threadripper is a formidable chip and between an extremely high number of cores and low price I can't help but believe that spot is earned. Even if it is ultimately meaningless. It won't last forever either, but it will force Intel to respond. And that's what we've all wanted for the last 10 years.