Once I broached this subject with a developer at a start-up that developed totally separate native apps for iOS and Android. I queried him about the use of native apps, and he made the point that you do whatever it takes to keep your users happy.

This was a startup. Not a billion dollar company. When your app is used by millions, it's a worthwhile investment.

It's also hardly boring to achieve the same end result on multiple platforms by using appropriate native code for each. Particularly when it produces satisfyingly fluid and responsive end results. Perhaps an engineer that considers it boring is in the wrong field. A UI developer should get satisfaction from developing UIs, not as it being a stepping stone to get into systems development. I can't think of anything more boring in app development than developing an app which operates in a mediocre way.

A carefully planned native app for each platform can still share parts of the same codebase, you're not necessarily reinventing the wheel each time.