If you're on about features? Ask Apple why they shy away from them on the web? Hard to justify imposing the 30% cut on a website/app.
Hell, Apple could have lead the charge on "web app privacy", implement the specs they've "missed" for web (notifications, background sync etc), and GATE THEM TO PWA/installed web apps, no more news sites asking to notify you when you just go to an article.
Heck, add keys to the web app manifest so as a developer I need an Apple Dev account and the holy $99 entry fee as well as my personal info in Apple's hands to make sites that do these things, so they have recourse to nuke the bad actors.
Because web developers can absolutely be trusted to do the right thing.
Being able to deploy a PWA that avoided the 30% cut Apple takes for all digital content would suit many users very, very well.