Come on, there's no benefit in being that static no matter how you try to justify it, younger Messi also was never this static . I said it before but his legs are going, one thing he does lack is natural athleticism which is catching upto him. Despite this, he was rested on weekend so has no excuse for not having any energy today though.
He was completely static, all his career, Pep even admitted as much in his autobiography.
“Look at Messi, it looks like he’s walking around the pitch….he sees that he’s alone; when he sees that they’re watching him, he distances himself…
“He spends the game walking, x-raying every single moment. He’s the player who runs the least in
La Liga – but when the ball comes to him, he has the complete X-ray of space-time. He knows exactly where everyone is. And Pam!”
Of course Pep is a Messi fanboy but lets not say Messi ran around a lot in his younger days because he simply didn't. He strolls around the pitch until he recieves the ball and always has.