Yeah, these are generally my impressions as well regarding Chessmaster/Organia/Arboria/The-Past/Trothon/etc. portals - maybe this even includes the Magical Rift you have to pass to get to the Nexus Island? I'm not sure how far this "no magic portal" train of thought extends.

Malakhi was my first experience playing a Rager so I don't claim knowledge to a reservoir of Ragerly tradition, but if the restrictions are going to be that draconian, I'd rather see all these portals changed than see "Rager Free Zones" when the cabal is already encouraged to stay within the Hamsah-Galadon-Voralian Rager Box.