This is all assuming that Goku just breaks the "no Super Saiyan rule" despite agreeing to it. This is argumentum ad ignorantiam. Context clearly explains why Goku wasn't concerned about Piccolo.
"Goku isn't concerned about Piccolo because Goku isn't concerned about Piccolo."
You're just restating your claim as the argument. Goku wouldn't be concerned about Piccolo because he knows he can win. The context lends itself to that conclusion because Goku is entering a tournament in which he...
Fair. I think it's fair to say that Goku expects a good fight with Vegeta and Gohan but expects to have a solid chance at winning. That seems to be mutual amongst Gohan and Vegeta as well. They express concerns towards Kibito and Kaioshin primarily because they may be far too strong to handle...
Uhhh no. Did you not read the manga where Goku is like "Wow Vegeta! I didn't expect you to be that great of a genius," during their fight. He definitely expected Vegeta to be weaker than him.
To keep it simple, Goku wouldn't be making this claim if he knew they were weaker than him. Their strength is unknown which means he has to account for the possibility where they could beat him. This would mean they would have to be stronger than Piccolo. The narrative makes no suggestion that...
He chastised the Frieza force for focusing too much on power than control and demonstrated the ability to suppress his ki completely. This was something both Goku and Piccolo did not demonstrate until the Saiyan Saga.
Assuming it's multiplicative is a reasonable assumption but the series has a strong tendency to clarify whether certain techniques are multiplicative or not. The only explanation we are given is that these techniques draw upon latent power and concentrates it around a particular point. None of...