There really is no reason for it with the available apps for all platforms. The apps include the files needed to render the UI and therefore do NOT need an Internet connection. This alone is enough reason to remove the option which allows new features to fit in the firmware (due to limited memory and storage space).
We also had too many support requests regarding this item and was no longer worth dealing with. For reference, here are the supported platforms and links to the app. If you want additional platforms supported please let us know and we can make an effort to get it supported:
- Amazon Appstore
- Apple App Store – iOS
- Apple App Store – OS X
- BlackBerry AppWorld
- Firefox Marketplace
- Google Play Store
- Google Web Store
- Windows Phone Store
Please note the Google Web Store and Firefox Marketplace support all platforms that the browser supports. For Firefox, this installs as an app with a shortcut simulating an installed app.
Update: We also documented how to host the UI files on your own web server locally, if you wish to do so. The document is located here: https://opensprinkler.freshdesk.com/support/solutions/articles/5000164006-using-a-different-server-for-ui-assets