I kind of like the idea of rewarding dedicated mage types and stamina-heavy classes in the dreamscape, since this allows for some cross-tier competition to make it not so easy for the solipsists themselves. If however it seems unbalancing to, say, reavers, then you can always adjust the rules. In the dreamscape, the solipsists' belief that their two primary stats cover everything is realized in full. That is, the solipsist also believes that the characteristic opponents 'strength' and 'dexterity' are the 'will' and 'cunning' of some character in her deeper mind, and the berserker certainly wishes that his strong attributes will help him to endure in the dreamscape, so their views harmonize here and structure the reality of the dream accordingly.The Revanchist wrote: That being said, if the class in question was a Berserker (who believes that hitting something hard enough kills it, and doesn't know much else, typically) and had to adjust to using their (lack of) mental fortitude instead of their physical... it wouldn't be easy.
As a side-note, maybe the talent should be structured so that you get a special achievement for fearscaping in the dreamscape, or vice-versa.