I think standing restarts are a stupid idea from the point of view of car reliability/overheating/restarting issuses and gearbox glitch history - some cars struggle to do one standing start at the begining of the race so asking them to do 2,3, or even 4 restarts is asking for more reliability issues and retirements.
I assume the standing restart is to avoid the other stupid 'cars being allowed to unlap them selves' when safety car is deployed that eats up precious laps that could be racing? Thats another stupid rule that need to change.
I can see the motivations of FIA to try to 'even up' the field a bit so that one particular car does not dominate the season, I think thats why they tried the double points as they were expecting Vettel and Red Bull to have the entire season in the bag by July 2014, as it happens - of course Mercedes actually had the team championship in the bag in Jan 2014, so all we really saw was a drivers championship year between Hamilton and Rosberg with a some other drivers (like Ricciardo, Massa, Bottas, Alonso, Vettel and Button) driving the wheels off their very ordinary cars to get the 3rd place. It is strange that with the tweaks that the other teams were allowed this season that they still were about 10% slower than the Mercedes works team in at the start of the season and never really gained anything by the end of the season. That to me either says something about the brilliance of the Mercedes chassis and engine, or says to me that not enough tweaking of cars is allowed during the season (presumably to contain costs), or all the team developers simply gave up and started working on their 2015 cars.
I think a funny/silly idea would be all cars are designed with a common engine bay configuration and clutch plate point. Engine manufacturers would dsign to these and then put their names in a hat to be drawn at random by the teams at the start of the year - that would make the teams responsible for aerodynamics/downforce, suspension setup, steering etc but they wouldn't know and would have no control over which engine they get to run until pre-season testing. Would also make drivers changing teams even more of a gamble than it already is!