Yes, probably why they still sell the intel Mac Pro, and will be introducing an Apple Silicon Mac Pro eventually that will surely top out at more RAM. (though it remains to be seen how they will get above the obvious 256 GB)

But this isn't supposed to be a "monster" workstation, but it will stand toe to toe with most of them given how superior the CPU is to most of what's out there. You speak as if Apple said this computer covered ALL computing use cases. And what a strange use case to bring up to compare it to, as if a max 40 Gb/sec interface to storage would is a *major* bottleneck for creative pro storage needs. Next you'll ask why bother if it doesn't have 16 hot swappable drive bays and i.Lo remote management built in.