> Why is removing a feature better than letting run a bit slow?
If a restaurant runs out of food, there are gonna be some customers who would eat a turd sandwich, as long as they could eat something, but most customers would flip out and demand to know who would think shipping that out of the kitchen was okay.
Now the analogy isn't perfect, but I imagine there's a host of reasons around expectations of support and experience that Apple has no plans on addressing for those cases, and rather than having a lot of time wasted clogging support with something that will just frustrate the average customer regardless, better to leave the few complaints about why they can't have it, since after all, your complaint doesn't cost them a dime in potential support calls. Just a vague feeling like you're not getting everything you want for the price you're paying.
If you've ever been to Disneyland, you can see historically, the park is jam packed with people who have that same frustration, each a paying customer.
If my assumptions on their product calculus is correct, I know which of those options I'd choose, from a business perspective.
Duet Display's iOS component costs US $9.99.