I traded a 2021 RAV4 prime PHEV for my 23 Expy Max (needed a tow vehicle). On the Toyota hybrid system, fully charged gave anywhere from 40-50 miles of EV range. The EV motor also acted as a boost for the ICE 4 cylinder to equal 302 HP. Bat-out-of-hell for quick acceleration even at highway speeds. The system always maintained a 10% reserve for boost when summoned at the pedal.
My experience with the PHEV is that for local daily use, I visited the gas pump maybe one every 4-6 weeks and only filled more frequently on long distance trips during which I relied pretty much fully on gas, as charging at Level 2 charging stations was slow and therefore impractical.
If Ford can marry similar capacities and capabilities into a PHEV Expedition, with perhaps the ability to uses both fast charge level 1 (Tesla compatible?) and home based level 2 charging, there is no reason why the cargo and tow capacity cannot equal or exceed the current configurations of power and range.
For those who remain skeptical of the capabilities of electric powered motor vehicles, such motors have been powering giant industrial processes, military submarines and heavy construction equipment for decades.