Why are many of you negative towards Team Universe 7's fighters not named Goku and Vegeta?

[Mazingerdestro]

Because people are impatient and in general like to complain without waiting for the actual show.
When Champa Arc started everyone was like "blah blah Goku wins all the time Vegeta is useless" and then Goku lost....everyone got silent for around 7 days till they started complaining for Vegeta winning....."blah blah he won against 3....".
Most people on the Internet are beyond "healthy" fans.
Additionally, complaining nowadays is cool....for some reason.
I in general ignore fans (mostly because they have no clue what they are arguing about) and prefer to create my own assumptions and support them and give Toei the opportunity to prove it's skills.
Till now I am mostly pleased with the show.

[Nano]

No one on their team stands any type of chance against them. Goku or Vegeta would smash all eight in a 1v8.

None of the fighters in the U6 had a chance. Hit only stood a chance because of a technique. Without it he's nothing.

Most likely, other fighters from other universes will also have unique techniques that Goku and or Vegeta will have to overcome.

Chances are it'll be the Goku and Vegeya show until the end of Super.