Every company does this. If you're grandma only uses a web browser, word processor, and excel, does she really want to spend an additional $50 on a feature she'll not use? Same with NPUs. Different consumers want different features for different prices.
Except it hinders adoption, because not having a feature in entry-level products will mean less incentive (and ability) for software developers to use it. Compatibility is so valuable it makes everyone converge on the least common denominator, so when you price-gouge on a software-exposed feature, you might as well bury this feature altogether.
