"Safari ships new features on a much slower cadence, but they’re usually solid and always perform incredibly well" Well, clearly this person doesn't have much experience with web development... The webengine in iOS is the biggest pile of crap I've ever worked with since IE6. "Oh? You want to click this? OK, let's wait for 300 ms just in case you want to double tap to scroll!" "We finally fixed it, no more delay on cl…
Oh so you want a large canvas on an iPad? No, F you. That might impact performance so we restrict it.
I think users would be expecting Apple to curtail your ability to crash or hang the browser.