Time to change the format. It's understandable you don't want to spend your whole career preparing for these long matches all the time. For the challenger it's 6 months of preparing, but for Carlsen it would've been his 6th time of preparing for this in a few years. They have also become less entertaining. 12 matches is long (edit, 14 now), but no one dares to take any risks. Caruana was just defensive and all games…
The classical World Championship matches have never been entertaining to watch live.
In fact they used to take 2 days for one game.
> No one dares to take any risks. Caruana was just defensive and all games ended in a draw.
Chess, in theory, with absolutely perfect play, is a draw. It's not a game of "risk" in classical time format. You can take risks in blitz and rapid, but in classical you have (almost) all the time in the world to calculate the line you're playing.