He did win the prestigious Most Overrated Rider on the Forum award after all...Might be a unpopular opinion but am I the only one who somewhat find Pidcock to be slightly overrated? Pidcock is more suited to the underwhelming competition in MTB. Road race there is simply many better horses than him in all major race least for now and up until now.
... which I don't quite agree with.
Except for his coach, I don't see many people bigging him up to be something he isn't. Saying he is the best mountain-biker in the world is hardly controversial, and the general consensus when it comes to road cycling seems to be that he is a serious contender for most of the classics while having some limitations in stage racing. Which I think is accurate.
As for his potential if he focused solely on the road, it's hard to tell. He has been able to hang with everyone not named Pog or Vingegaard on some big climbs, so there's something there. But my own suspicion is that he might continue to be inconsistent and prone to bad days.
For him to be overrated, he'd need a lot of people to actually overrate him. And not just his coach.