Flick has clearly stated that how never interested in signing a long term deal. He always wanna get pressure that can motivate him to perform better as a manager. That's why he always only wanted to secure one - two year contract extension.
I see nothing wrong with Flick's decision. It's because one year contract is always pushing him to manage his team better and remain consistent. I only hope him always doing well.
Flick signed a two-year contract with Barcelona and now he will focus on completing the task even though Barcelona are trying to negotiate a one-year extension for his new contract and the principle is almost getting a good response from Flick himself. His first season with Barcelona went quite well so it is only right that he gets a new contract extension even though he has said he does not intend to accept a long-term contract at Barcelona for several reasons and the big challenge he will face is how to bring Barcelona success in the Champions League and in La Liga both this season and next season..