You actually can rollback (to iOS 7)!! ---Unfortunately this will delete all of your apps/media---
Head over to
http://www.icj.me/ios/all and find your device and download the ios 7.1.2 .ipsw file listed next to it.
Remember. This will only work if the iOS version is highlighted in green (currently iOS 7.1.2 is!) because Apple is still signing it. AKA letting users "update" to that firmware version.
Then go onto iTunes on your computer and find your iPad listed there.
Hold down shift (command for macs) and click on the restore button (unfortunately clicking update to switch to a lower iOS version doesn't work)
A window will pop up and from there you can select the .ipsw that you downloaded earlier.
It should restore your iPad to the earlier iOS 7 and now you have successfully downgraded!
I'm going to try this right now... I'll update this post when I'm done.
Update:I was successful in downgrading my ipad!!!
It turns out you actually don't lose all of your apps/media if you backed up your ipad while it was still on ios 7. You can do a restore from backup after you go through the restore process and you get everything back!
Good luck to you if you try this tutorial.