Depends on how you look at it. You can equally argue that we only have Hamilton and Alonso for that matter, out of the equation because they don't have the equipment right now. Alonso certainly demonstrated that today, only let down by a hydraulic failure. They are not spent forces.
What we want is all the drivers able to fight it out. The new cars are great and they do offer the possibility of closer and more exciting racing. We also have a whole squadron of super-talented super-exciting young drivers. I want to see them have to fight it out of the old guard's hands. I want them to earn it against the best and then become the best themselves.
The reality is this isn't always what happens with F1, and often it is changes in technical regulations that bring about large changes in the competitive order. That's fine, and normal. But to say "Well I'm bored of you old drivers, just get out and we'll have the new ones" is nonsense. If you want it competitive, then you want the best drivers able to fight.