Pre-draft narratives are hard to kick, especially when there were zero statistics supporting Josh as a top tier guy. Fair or not, that will follow him for years.
Tua will be "injury prone" for years, and Lamar will be a "RB pretending to be QB" for years. Josh is JUST starting to kick the "extremely erratic gunslinger" shtick, but plenty of people have their responses all queued up for when he has a bad game or two.
There are fair critiques of every player, but there are no shortage of inflammatory and sensationalized takes out there. Elite play buries most of them, but some never quite go away (ex. Tom Brady is a system QB, Peyton Manning was a choke artist, etc)