Seals and Rf are still magic effects hence dispellable.
There no hidden threat buff in RF... and honestly, we don't need it. Current prot paladin threat is more than fine. Hell, it's already impossible to overaggro me as retri, as protection mobs and bosses stick to me like glue

Also consider that our 2 main threat skills got a 20% additional threat modifier: differently than warriors', our threat skill scales even more with damage done. So the more spelldam/AP we get, the more our threat increases exponentially.
I always been a fan of turning RF into a "stance" (maybe even with a dedicated bar) but i don't think we'll see that happening. The major bad thing is if you don't notice RF running out during a boss fight
