The worst thing is that, whatever they "save" in the hybrid part, is offsetted by the amount of pollution of flying all people and machines around the world.
Someone on reddit showed a graph comparing both, and it's just ridiculous.
I'm an avid F1 fan since 1990s, and think hybrid engines is the wrong way to do it.
It's not just about being environmentally friendly; hybrid engines have fairly significant performance advantages over non-hybrid engines.
The hybrid power train isn't about carbon emissions at the race, its about advancing lower carbon technology.
That said, its still dumb since consumer cars are moving on from hybrids it seems.