Surely the point of flying Beacon-to-beacon (or any other "follow the needle" navaid) is that it allows you to minimise the mental effort involved in navigation and thus can spend more time looking out!
I'm not saying that isn't the case. But unless one knows how to manage VOR or ADF homing/tracking and is disciplined in this approach then I think it is just as likely to be a focus of fixation in the same way a chart is for pilots who don't DR Whirly stylee.