if you look at Flick's unique coaching style which always makes offside traps it is indeed extraordinary although it is true that the strategy is very dangerous if there is a team that manages to thwart it like Inter Milan which was then coached by Inzaghi where Inter Milan managed to thwart Hansi Flick's strategy. but of course for next season of course we will not know what will happen later because of course all coaches and clubs already know the characteristics of Flick's current coaching style and of course in the coming season Flick will definitely need to be vigilant and of course Flick must make a better strategy.
Yes, any strategy when studied and vulnerabilities are found leads to what Inter did, but if Hansi Flick's perfection can make Barcelona an almost invincible team, similar to what Pep did when he managed Barcelona in the Messi era, which was the famous tiki-taka, then it is a question of knowing how to implement the strategy to make it more solid.