It should be about if it is better preparation or not. Regardless about who is there, even though strategy-wise that could be reason to race it. Not avoid or dependent on someone else, as what you are suggesting.Because racing the Dauphiné is all about "feeling his rivals". If Vingegaard isn't there, it doesn't matter and he can win another one week stage race. He said he wants to win all major one week races.
Or it will be about something trivial as "vibes", as Monsi said. That he himself would rather go Suisse for some reason, for example.
