Webviews are fine for displaying arbitrary content with arbitrary formatting. If your backend is an e-commerce catalog or CMS, then cool. If that's not your use case, ask yourself if using Webviews is just being lackadaisical. For example, a Web-oriented developer not wanting to use native layouts.
In iOS9 there is a new Safari web view which is much more like mobile Safari than the old web view.
No mention of Safari View Controller and Chrome Custom Tabs?