the reason why we didn't go with this is because it sets a false expectation on how the game actually plays. it's important to get stomped every now and then because while it's not pleasant, you learn from it and get better. with a new player server, you might improve a bit and then think "oh well now i'm really good at the game" then you hit level X and get booted from the noob servers, and realize that you're terrible. that's more demotivating than a soft matchmaking system. This being said, we do have a soft skill based matchmaking in the game, but it's negated by the server browser currently, since you can just join whatever server you feel like (due to lower player counts).
overall it's a cool idea, but exposure to higher skilled players is beneficial sometimes. This being said, it's your server and I hope this helps some new players learn the game in a friendly environment!