It would be useful but wouldn't tell us anything we don't know already.
He's playing worse, this season compared to last. Fewer chances created, fewer assists, fewer passes, worse pass completion, less tackles won, more tackles lost Interestingly, one of the only metrics he's improved upon from last season is in goals scored per 90 minutes played. That was a surprise. The other counter-intuitive stats are blocks and interceptions, which he has improved upon last season. Although those two are still worse than most of his peers.
What the distance covered stats conclusively prove, though, is that - this season - he's not working anything like as hard as the players with whom he's competing for a place in the team. Which is a shite state of affairs.