dash in 2A is one of Jin's best oki.
It would catch rolls, and cross under neutral tech.
if you want to mixup throw you can always just run towards them and in the heat of the battle they will try to back roll/neutral and there is your 6B/throw mixup. (cancel to barrier guard if u think they gonna DP)
also I believe I Said this like couple hundreds post back, please don't be lazy to read all the old stuff