Super Vegeta's Final Flash was able to completely atomize Perfect Cell, and it never detonated. Meaning that before detonation, it equated to a power capable of utterly dwarfing planet busting force. That same Final Flash was batted away by SSJ2 Goku in the Buu saga, iirc.
Regardless, having mass does not mean that the attacks force is somehow dormant, when it's literally just a sphere/wave of energy. This should be obvious. Of course, there are some attacks in DBZ that function as "bombs", but that's only through extreme mastery of ki control. Hell, Gotenks was able to make a sphere with SOLID MASS, out of his own ki, capable of trapping even Super Buu, who was capable of tearing dimensions with just a shout.
The point is, whether or not the attack has detonated, surviving, overpowering, and no-selling explosions with planet+ level destructive capacity is the only feat Goku needs, at this point, when it comes to durability, or strength. You could argue that his physical lifts would be lower than Hal's, which would be wrong, but you could. It doesn't matter though, since his strikes are capable of effortlessly surpassing planet level durability, even in base form during the Namek Saga.