Video editing... with a base SSD of 256GB? Ummm... right.
People who are going to be doing video editing will add another much larger drive or several, interior to the case. The 256GB high speed SSD is for the core system components. They also have available to them six 40Gb per second Thunderbolt 3 ports capable of connecting 36 peripheral drives including raid arrays and video servers. The processors have 64 lanes of PCIe data transfer available, even on the base configuration, while the top end Intel i9 has only 16.