I wouldn’t put much emphasis on the storage. Most places that are doing video editing at this level are using all flash based SAN networking over 10/100GB Ethernet/fibre.

As for the CPU, I agree. However I’m not 100% sure on how much can be offloaded to the GPU these days, 5-ish years ago when I was working with video editors a lot, it wasn’t much that could be offloaded.

Maybe it’s improved a lot.