system
Given the following post, respond as if you're commenting on Reddit:
human
[Dragonball Z] Goku is disappointed because he needs the help of others to achieve SSG, but that's exactly what the Spirit Bomb does.

When Goku becomes a Super Sayan God, he finally manages to fight Beerus toe to toe, but he's disappointed because this was a power level he couldn't have achieved on his own, as the SSG requires other Super Sayans to concentrate their energy. Goku doesn't like that because he wants to improve his own power by himself, without ever relying on others.

But...isn't that the whole concept of the Spirit Bomb? It allows you to perform a technique much more powerful than your own power level allows by borrowing the energy of others. Yet Goku has never shown to be uncomfortable using the Spirit Bomb despite it violating his own philosophy of not relying on others.

I'm not complaining that Goku used the Spirit Bomb at all. He's still selfless and will do what's needed to save the Earth. But he should be more disappointed when he does need to use it.
gpt
I think it's because a spirit bomb is just an attack. It's a single technique and, honestly, it's kind of impractical for battle.

SSG is an actual state that is unattainable by Goku through normal means.