Fair points. It's worth stating though that this only matters if you have a requirement to look 100% native. Many apps don't have this requirement whether mobile or desktop and so they may use a web ui. In our case we didn't have the 100% native requirement and used Qt. We still had a really slick user interface, it just wasn't native.

Note that our customers are primarily concerned about the functionality of the app: They are not drive by consumers, they come to the application because of it's functionality. I understand that not everyone has this kind of customer.