I argue that developers enable the egregious behaviour by supporting safari in the first place. Just as IE was called out and shunned for its shenanigans, before they started behaving better, so too does safari need to be treated. However, it does also feel too late, they have crippled other browsers too with their platform abuse masquerading as requirements while we celebrated it.
I’m also not sure how accurate this page is. They claim Chrome on Android supports registerProtocolHandler while MDN says it’s not supported there.