You may not agree, but the trump card in all this is Brad Arthur, tbh. Most Eels fans at the moment have complete faith in him as a coach (apart from a few hissy fits after the ambush on Sunday) and I don't think many other clubs fans would argue too much. If he sees something in Moses that he thinks will improve the side then we'll back him for now.
There is absolutely no doubt Moses is talented. Some muppet, probably Pou, made an interesting post comparing Moses to Norman at the same stage of his career. Moses comes out on top in most attacking stats. And he killed it last year. One poor year where he lost the plot as his club imploded doesn't make a career any more than his quality year last year did. It's probably the first real gamble BA has taken, so it will be interesting to see how it plays out. Personally I would have gone after Widdop, but Moses will add another genuine half to a side that relies too heavily on Corey Norman, especially in terms of play kicking.