I find this such a bizarre thing to say for someone who's watched this team the last few years. Walker displays his better defensive abilities in every single game we play.
What changed between 16/17 and 17/18/19? We got Kyle Walker. That's literally all that changed at the back. We got the best player in the world at defending half the pitch on his own against counter attacks and breaks, and immediately we went from getting countered and fucked over by teams breaking against the run of play, to 198 points in 2 seasons.
So I don't really care if Cancelo is individually better vs. a parked bus, because 90% of the time in those games, Walker is the last man back, and the man who gives us the security to play the highest line in world football without worrying about it.
If you want Cancelo to play as a winger, than someone else has to do Walker's job. And no one else is even close to being as good.
PS. "Don't get too excited by Walker's performance vs. Real" is a ridiculous thing to say when Walker's been one of our best players all season and undroppable since the day he walked in the door, with very brief dip in form when he got played into the ground.
I would suggest "don't get excited by Cancelo putting in a couple of half-decent performances at LB and Pep praising him for not having a shitty attitude anymore" would be more fitting for our RB discussion.