Steve Burke is saying that they're right about to start their AMD Zen vs Intel benchmarks, and unless Intel releases some kind of explanation, as things stand, since they don't have a known, definite non-problematic configuration for the Intel CPUs, they're going to just have to do a "we do not currently recommend buying Intel processors".
Honestly, what I'd do is just compare against Intel 12th gen chips. Like, yeah, that sucks, but that's the last definitely-known-good chip that Intel's put out. You can still buy them, and they'll work on current motherboards, are LGA1700. Then caveat it with the "if Intel can confirm that some Raptor and Meteor Lake chips are not affected, we can revise this".
On Passmark, a 14900 is about 46% faster than a 12900 on the multithreaded benchmark, and about 14% faster on the singlethreaded benchmark. It's slow, but it's also stable and available.