Cause, I just added the GPU and system RAM bandwidth numbers together. Which is what needs to be kept in mind with much of this. Yes that is a lot of memory bandwidth and its hella useful for some subset of users, but its shared, and largely pointless for a lot of CPU bound tasks. But OTOH, may not be enough for many GPU bound ones.
It also assumes that pretty much every other CPU manufacture on the planet are idiots for optimizing for latency and putting in large caches to compensate (aka the desktop parts from AMD/intel have only _two_ channels, vs the 8+ in the server/workstation parts) and price discriminating for the parts that have more CPU bandwidth. AKA, you can get amd machines in the same ballpark (or possibly faster depending on how fast you can get 24 channels of DDR5 to run).
So, I'm not saying which is better because its likely workload dependent, but to claim its a blanket insurmountable advantage is questionable. Particularly since the price ranges we are talking about a similar machine is probably a 64 core threadripper plus a fat nvidia GPU or four and the shear core count and raw GPU compute is probably a win in most workloads.