IMO they'd be better off demystifying the laws of the game to attract the casual observer. Endless scrum resets, mauls with weird law interpretations, and a bunch of forwards arm-wrestling the ball over the line is not going to attract a new and younger audience. They'd essentially be peddling a product around the UK that no one will remember, aside from a free ticket and a p1ss up.
Scrums, mauls and forward play should absolutely be a part of the game, but the powers that be need to find a way to make the 'product' more expansive and exciting.
Nothing gets you off your seat as much as a Christian Wade receiving the ball in space. Now, even the wingers are 6'4 bruisers.