Really? I thought it was universally understood that Wenger has always been tactically limited
In fact the same things were said about Arsenal even when he had his invincibles team, deny them space and time and they will find it hard to play, they don't like playing physical teams, they try to walk the ball in the net etc
The difference today is the players that Wenger has bought since 2006 are on average smaller, physically slighter and more technical and they don't take collective responsibility for their performances.
They also lack the ability to defend a corner and about ten seconds later have the ball in the opposistion net which was the greatest strength of that Wenger team to break with pace.