I'll admitt. 3.5 games is 3.5 games. No gettin around that. I also agree that durability is something that will only be established over time.
HOWEVER, I think we can all agree that Romo's start has been nothing short of remarkable. Numbers, especially with a small sampling can be skeewed. A RB takes a screen pass 80 yards after shaking and breaking five tackles. This can really pad a QB's YPA and rating. Excellent pass protection, exceptional WR play, strong running game, strong defensive play, weak competition. These can also play a huge role.
I don't think Romo has had the benefit of any of this. If anything, I think we can agree that the team has slightly underperformed for Romo in these areas and the competition has been at least decent.
Yet Romo has managed to post a 101.2 QB rating and a league best YPA of 8.78.
In additon to the strong numbers, Romo's given me plenty of visual evidence.
Can anyone name me a true flash in the pan? Some QB with a Romo type career start who quickly faded away.