If you are running a business with limited funding (which is most businesses), then your primary need is to seek profit in a world where profit is often never achieved at all. Otherwise, your business ceases to exist, along with your app. Sometimes that does mean emphasis on strong design, which I’d argue means delivering a great experience to your users rather than a native or non-native design choice. Other times, you’re serving a demographic that doesn’t care so much about that, and your focus is on functionality above all.

What's best for the users is often more "having the web app and app being the same" than "having it be different on every platform".