> To do away with the point of failure that you so aptly illustrated by getting salt water in your phone?
That's Apple's point of failure. The rest of the industry (mostly) has worked out how to make a headphone jack water-resistant, years before Apple made any phone water-resistant at that.
> Yes, by removing the headphone jack on high-end phones, just like Apple did.
No, this is clearly incorrect. As I said in my original comment, there were water-resistant phones with headphones jacks years before Apple released one without a headphone jack, and there are ones being released now as well. While Samsung removed a headphone jack for a generation of their flagship phones, the generations before and after were both water-resistant as well. Samsung's newest releases (S10 Lite and Note10 Lite) both have headphone jacks and are water-resistant.
That's Apple's point of failure. The rest of the industry (mostly) has worked out how to make a headphone jack water-resistant, years before Apple made any phone water-resistant at that.