His issue seems to be he thinks many Unifans are blindly praising everything without proper judgement. He prefaces things like that when he's going to say something slightly bad about the future of Uni, because he is of the opinion that many Unifans will blindly defend the resort no matter what. He has gone with Parkscope as they are very public on twitter and also leak a lot of Universal info. He just likes to drum up controversy. If you pay attention, he talks down on WDW possibly even more. The only reason he isn't as much right now is because there's actually a big project in the works for once.
You are unfairly grouping together the entire site as Unihaters because of a few posters. The site is generally pretty balanced, if not overly negative towards WDW at times, these days. Ever since Spirit started posting over there a few years ago, the rose colored glasses have gone away big time. Uni has continued to dominate, WDW to stagnate. People are realizing that WDW isn't the powerhouse in Orlando that they once were.