This year the races are being a lot more fun. Not that any team can really defeat Mercedes unless their drivers crash one into the other but there's plenty of action behind them.
Seb is a good driver when he has the best car, but when he doesn't he's more prone to loss his temper than other drivers. I don't like the way he comments on the radio when other pilots try to overtake him. He's not the mother queen.
The problem in letting the engineers to do their job and freeing testing is that the expenses would increase, which not all teams can afford. We might be facing a competition with just 3 or 4 teams, which perhaps wouldn't be so fun.