I wonder how you got it approved; it seems like a direct violation of guideline 4.2:

  4.2 Minimum Functionality
  Your app should include features, content, and UI that elevate it beyond
  a repackaged website.
  
  4.2.2 Other than catalogs, apps shouldn’t primarily be marketing materials,
  advertisements, web clippings, content aggregators, or a collection of links.

Not that I would expect consistency from Apple reviewers, just noticing.

And, while we are on this topic: maybe it indeed makes sense to make a website instead of an app? You can send push notifications the same way, but users won't need to install one more app and could use their favorite browser with their favorite settings, bookmarks, etc. etc.