I'm not sure if you're trolling or sincere here. Of course iOS apps don't need them, they are native. We are talking about the capabilities of the iOS Safari browser.
Yeah, because the browser doesn't offer the capabilities needed to render native apps redundant. I'm not sure why we're talking in a giant circle here.
Clearly, the "build for IE6 + Windows" of 2016 is "build for native iOS", which was the original point I was making.