I was never making a comparison between Brunell and Heinicke...or between Collins and Heinicke for that matter lol. I was talking about how fans on this site were complaining about arm strength even when the arm strength of the QB was on full display like it was numerous times with Brunell (hence the "if you can believe it" at the end of my earlier post).
It's also not just speed, it's the ability to make legitimate throws when the mechanics are off.
At any rate, we've seen Heinicke make throws with more than enough zip on them. We should stop acting like he's throwing a beach ball out there. But better arm strength would mean he makes them with consistency, week after week, which he does not do now.