Could it be a stepping stone for Arsenal Managers? 10 years ago Wenger was also accussed of overworking Arsenal players and at same time not purchasing players that substitute key players to regain strength. It's not limiting, but changing how they're trained to play in the pitch, it appears exhausting. These players always have injuries ranging from Muscle pull, Ligament, Tendons, Hamstrings etc that eases the notion that the injuries are from aggressive tackling from opponents, and marks excessive training as the main cause.
On the other hand, if the team spend lots of time mastering how to hold ball for a long time and exhibiting sweet football in the pitch, it can be reduced and focused on long passes which would take opponents off the sight of key strikers. Nobody would withstand the way Arsenal plays without trying to rough them, and it happens too often that it then leads to injury, coupled with the training schedule.
I think players will always get injured if they hold onto the ball for long because that will attract tackling for opponent players or worse case injury or bad tackling, some players sometimes just goes straight for the leg instead of the ball. But this swift and sleek passing once you receive the ball, at least if the ball isn't with you then there will be no room to receive tackles. Seriously, I do feel sad each time there's a news a particular player is off injured. We are meant to enjoy the and see every players fit for the game.