no, it shouldn't. this was heavily tested. there are several formatting tasks being executed that override any formatting that a plugin tries to implement. specifically with custom rules we wanted the esformatter-gilt-modules plugin to implement for that createModules Identifier node. It's safer and much more flexible for the walk() method to run with another call to moonwalk. walk() won't always be required, and shouldn't always be used - as evidenced by the other plugin examples.