you were right with the first "no". if it wont work on gogeta, it wont work on lower level saiyans either. even nappa dodges this shit
After all, amaterasu was described to be hot as the sun right?
no. and if it was, thats a gross hyperbole and no limits fallacy. it struggled to burn karin's clothes and a samurais armour. whereas roshi's lava burnt through kcm narutos cloak without even actually touching him. what sounds more impressive and closer to sun level to you?
SSJ4 Goku was vulnerable to heat as seen in his fight with Nova Shenron.
yeah heat thats comparable to the surface of the sun. amaterasu is not. nova actually could back up being that hot as he was able to trap omega in that much heat as well