True, the RTX IO could be interesting, but, again.... 3xxx series GPUs only, requires I think PCIe 4.0 and uses the same DirectStorage API as Microsoft is developing/developed, in addition to that, you need to have all of your items you wish to load faster on NVMe storage, so M.2 drives or PCIe based SSDs, in addition to that it also uses RAM in some way, so ideally you want a boat load of RAM
So long and short of it, is you need EVERYTHING to be of the latest generation... a costly proposition for something there has been insufficient time or hardware to allow for full evaluating