Sure it has, except back when they had racing it wasn't rules that limited the cars but the ability of the driver and mechanical reliability. The designers and mechanics had to balance the cutting edge with reliability. In the end it got silly with the Renaults so adjustments had to be made, but it has been a stream of bullshit ever since. All of this is supposedly so more cars can get on the grid. So how has that worked out? The smaller teams have all come and gone and never got a look in, the money is still rigged. But rather than change their cosy financial deals they've fucked the action on the track. It was the stupidest set of rule changes ever that gave Mercedes a huge advantage. Fine, they reacted to the changes better, but how exactly were Caterham or Force India, for example, ever going to compete? That greedy bastard Ecclestone and the gang of thieves who run the sport along with the big teams are the real cause of the non-competitiveness. That's where rule changes should be focused but the chief beneficiaries are the ones who make the rules. Take the handcuffs off the teams and see what they can really do. Mercedes might still win, or some other team might come to the fore, but at least it would give the rest a realistic chance of catching up. Marussia would be fucked I suppose, but they are still trailing around a lap behind even with all these stupid rules. Greed is the problem as usual and it's producing default champions who only have to turn up to be crowned.