That's what the scientists pushing the electric universe crap are saying about the other scientists pushing the gravitational universe crap. I think they've explained the universe in a very accurate way based on how we see it.
Yes, peer review helps only when the individuals reviewing things aren't biased. And usually when the experiments of fudged theories are attempted to be reproduced, they will fail catastrophically, and it is immediately obvious that it is failing. Only I don't think they all get their results double checked through duplicate costly experiments every time they do a study, so it is not too hard to get fake stuff through a peer review.
I agree, old theories can only be put up against contradictory evidence, and yet they are still very accurate for the specific cases we have been using them for. What is happening now, is we are finding exceptions to the rules that were created before we knew as much about the universe as we do now. No one is saying gravity does not apply, it clearly has its effects, but when you look at a different scale the gravity model does not fit as well as the electric model. So far, gravitational theory has been very helpful in our first skips out of the space pond (earth). The gravitational model is very accurate for describing planetary motion, which it does. However, when looking on a larger scale, entire galaxy sizes, the electric ideas make more sense and better describe what we see.