There's small and then there's tiny. He's tiny. He's Doug Flutie level tiny. Kyler Murray is tiny too but he's a ball of muscle with next level athleticism. It will be interesting to see how well Bryce Young can hold up. And will he be able to see and throw over the LOS in the NFL? I've heard QBs taller than him talk about how that is one of the biggest adjustments when they got to the league.
I have nothing against Bryce Young. He seems like a good dude and he plays the game the right way. Having said that I hope he's the GOAT of draft busts. He has the tools to be a bust but he also has the tools to be a really good QB. It's a coin flip.