A secondary reason is that they don't seem to make Huffy's for people over ~ 5' 10".
(The $500 bike will probably handle better too, but not 5x better, and I'd recommend getting something more expensive if you can afford it.)
Examples of $100-$200 adult bikes: https://www.walmart.com/browse/sports-outdoors/huffy-bikes/4...
The cheapest repairable "large" adult bikes at a bike chain that is common in SV have a starting non-sale price of $500: https://mikesbikes.com/collections/bikes?sort_by=price-ascen...
Anyway, my point is that if the eBike people prevent you from repairing or customizing your bike by using non-interchangeable parts, then they're asking to be disrupted by low-end landfill bikes.