You do remember that the Storm revolutionised defence by wrestling, holding the player up, so their defensive line can reset and be ready to bounce off their line the moment the ball is played, right? And you're suggesting we need to just submit and let that happen?
Same for tunnel-balls. Rolling it straight back saved valuable fractions of a second that allows the hooker to dump it off to the runner before the defence can start to move off their line.
This isn't NFL where you have two set lines and each play resets it. And there's a reason for that - you can't pass forwards in League. Having options, multiple options on both sides might sound good but the reality is that every pass takes time, and is compounded by the distance that pass has to travel. It won't matter if you have a heap of options both sides of the ruck, if you've got a set defence coming at you it doesn't matter who gets the ball, they'll be swamped. The defensive line will only be stretched if they're made to mark up on your own runners if they're out wide, but again, the wider they are the longer it takes to get the ball out there. Swamped again. And with the defence in your face, there's the serious risk of dropped balls or even intercepts.
As for quick PTB's, which is it? Is it a fantasy? Is it "seldom"? I suggest you watch the outside backs on kick returns closer next time. There's a reason many of them don't just run full-steam at the defensive line. There is just as much merit in using footwork at the line to get between defenders - I don't mean through them - but avoid a front-on tackle so that they can get on their hands and knees quickly and get a quick PTB. Different techniques for different players, working to their strengths.
Fast play-the-balls are everything. The faster, the better. Just about every act of foul play that comes in to the game is designed to either speed up your own (tunnel-ball, not standing all the way up before playing it), or slowing down your opposition's (wrestling, flops, peeling off one-by-one, hand on the ball, crowding with your knees). To deliberately slow down your own ruck is, well, a Huge mistake.