Well..guess he really is exponentially getting stronger. I only said it as a joke but now it seems all too real.
But I was hoping that Vegeta would at least do something better than being cannon fodder. He's been training for much longer than Goku and yet always loses. Really sucks.

Let's hope the manga part of this is better. When Goku and Trunks fought, Trunk was almost as strong as Goku was in SSJ3 while being SSJ2. Sure, SSJ forms aren't that relevant anymore but it gives a better picture of how strong Trunks is.