Both are true.
Here's my thing with both of them. Herbert has all the tools. Has the arm. Can make any throw. Tua has none of that. But what Tua has is good football IQ, better coaching and a fire inside to win and get better. I question if Herbert has that.
Herbert shows time and again his pocket awareness is not great. He freezes under pressure. And in my opinion, jes regressed since draft day. Tua has his limitations. He's definitely a product of the system. But while he's in the system his short to intermediate accuracy is deadly and he knows how to win.
Combine Tua's game IQ, desire to win and get better, accurate and poised play with Herbert's physical tools and you get a Mahomes or Allen level talent.