I worry about this with most components of e-bikes. I suppose a mid-drive one is probably always gonna have parts you can replace but custom kit like VanMoof seems ready for landfill.
The website is telling me there's a charge for the shipping, but no way to pay it.
Going with a small/exotic brand will always carry a risk of brand disappearing, no aftermarket options, hard to get spare parts, etc... And e-bike business is especially competitive these days so I wouldn't bet on some random hipster brand having any chance to survive in the battle against established brands.