> 2. Those people and many more besides have no idea what "add it to home page" even means.

If Apple supported the beforeinstallprompt event (available in Chrome since 2015) then people would have same experience as installing app [0]. Instead, you must create a wrapper around webpage and submit thru App Store.

[0] https://developer.mozilla.org/en-US/docs/Web/API/Window/befo...