Exactly my thoughts, 240V is a must so in NA you need to hire an electrician to rewire the entire house to be able to run this thing and if you’re renting, good luck getting your landlord to approve lol, though for the targeted billionaire audience who owns multiple RTX 4090s, it shouldn’t be a big issue. They certainly already had or won’t mind building a whole new server building to house these.
Alternatively, they could use two 120V(20+A) connectors, but that’s cause for more liability as you’d need two circuits that may be spaced far away nor will it stop illiterates from trying to plug them both into the same 1850/1650W rated power bar hopefully with good safety standards. Once they start tripping or damaging their PC, obviously they’ll return products claiming poor build quality or defects when it’s their stupidity.