Having two different configurations of assets requires making a system that can switch between them, separate deployments for them, some way to actually fetch the asset pack by the users, testing to make sure both configurations work correctly, actually deploying the separate asset pack during an update, and then spending time fixing bugs that inevitably come up with any added complexity.
Could they do it? Absolutely. Should they do it? Probably.
Would there be no downside, no tradeoff? Claiming so is plainly ridiculous.
They’re fast and efficient, by putting the heating element right up against the water, and also safe thanks to shutting off automatically. Great shit!