I mean, the US isn't a market where sedans and coupes ("conventional cars" as the OP says) can succeed. SUVs and CUVs have been the popular choice for consumers here by far. Domestic automakers get the majority of the sales from the US market, so of course their EV line needs to address that market.
Seems like the system is working as intended to me. If people were going to buy an ICE crossover before, and now they bought an EV style instead, that's a win