People can become better at running Shroud by running it themselves, and listening to other people who already ran it 200 times.
As for PVP, there are plenty of games that are focused on it. DDO is not one of them. One thing I have always liked about D&D and by proxy, the games based on D&D, is there is no weekly class adjustment regarding balance between classes, because the fan base clearly understands it is not a PVP game.