Apple could also tackle Chrome's dominance in a different direction. Just invest much more aggressively in Safari and web apps, 10~20x OpEx. Release Safari on Android and all other major platforms. Make most of it fully open source. Make all of its first party apps available on the web.

Obviously this means that they need to give up on their iron grip on app developers so they didn't do that even if that was the exact path Steve envisioned. But that's not a good excuse either.