All electric airplane designs today appear to be frauds (like all crypto currency projects), because no one airplane project answers the most important problem: battery power density.
https://www.pipistrel-usa.com/alpha-electro/
But these other eVTOL designs are probably just too early. It will take several more generations of battery improvements until they become economically viable.
They may not be correct (and they seem to have assumed at least 5 more years of basic improvements) but the suggestion that they haven't addressed the problem at all is just wrong.
In five years, the problem may no longer exist. Perhaps the plan is to wait for battery technology to advance...
You're not flying NY to LA in this thing and that's fine.
It’s an electric aircraft with a hydrogen fuel cell system.
It's not a battery.
I don't know how dense they are, but they're pretty heavy.
(someone will get this).