I don't see where is the IQ he lacks. If you can explain, please do...
Other than that, if you think that Roberto was good at picking out passes, maybe you didn't watch him at all.
He was good at picking out people behind him and next to him. Never forward, progressive passes, which is a requirement for a modern RB.
Let alone the many other ways in which he was messing up the position
Here's a cherrypicked example for ya:
https://www.youtube.com/watch?v=Q2JTZrMgbcc&ab_channel=FCBCompsA7i
I still think Roberto's last pass is more precise than Dest's.
And no I don't think Roberto is the GOAT of fullbacks. It's just that his offense is very different to Dest's.
I really like that he whips in the cross to the space where the attacking player should be running too, rather than actually picking the pass (ahem alba, back to Messi).
The Braithwaite goal is a great example of that.
It's basic, but it is the basics that win you games. That's why Madrid had 3 CL wins and we passed ourselves out of the tournaments.
Plus it is easy to look at the past with rose tinted glasses. Alves put tons of "aimless" balls into the box which ended at nobody.
Marcelo and Carvajal doesn't have that same style of crossing. They can look up and see where the target is and aim for that target. Same with Robertson and TAA, Alba as well.
Dest doesn't have that ability
yet. He's a lot more vertical: bang bang and the cross is smashed in, in hopes of someone being on the end of it.
Now I'm not saying it's a deal breaker. But all the world class full backs have had this ability.
We'll see how effective Dest's crossing is against better opponents where the CB's have the ability to cover spaces better than those Valladolid bums.
In those games Dest needs to be reactive and not just hope he hits someone's head or foot.