They're both really bad maps, yes.
It's only split because some people like maps they can't die on as props. Props DO NOT lose on Cyber. This is not a good thing.
Redstone is a good map as it requires teamwork, otherwise props can dance over everything, but usually there are enough people around to think 'Hmm, there's a prop running, maybe I'll help kill it'
Cyber is a good map, if not for props for hunters, I know it encourages me to try different classes, if it wasn't for cyber, i wouldn't be able to rocket jump, if you can call what I do rocket jumping haha. As for hiding on cyber, it's pretty much a roof run or a claustrophobic dead end. So if hunters use this to their advantage, there shouldn't be a problem, shame is people can't be bothered to think about what they're going to do in each round. Usually I have a clear run route mapped out should I be found, and I also have a few strategies for leading people the way I want them to go.