Looks like the motor is a standard "500W" (of course it's not, it's being overdriven) brushed DC motor and this has a 288Wh Li-Ion battery.

Given that this is being recalled for documentation and regulation issues and not some inherent mechanical defect.....

They give you a 1900$ refund and 50$ to "dispose" of it and send back the old motor controller.

Spend $15 of that 50$ on a "brushed dc motor controller" on AliExpress. Well of course anyone doing it is going to actually spend $25 instead to upgrade it to 1kW riight??? Heh.

Sounds like a good... nope I mean great deal to me. Anyone who goes to the lengths to obtain a replacement motor controller (likely of higher wattage) probably has a clue and will have good fun doing it. Too bad there's no field weakening on a brushed DC motor, but you can also get a 1.8kW dc-dc converter for 20 bucks....