1. The only fanboy here is you.
2. How does Naruto's limits represent Minato's?
3. If my argument is so weak, how come you've just been ignoring it? Remember, the Ma and Pa thing wasn't my argument.
By the way, now that I think about it, Minato can summon Ma and Pa. You know why? Because Ma and Pa, as Toads, are bound to the Toad contract. Since Minato has signed it, he is able to summon ANY Toad as long as he has enough skill. And Minato is labelled as a true genius, so it's safe to assume he has the skill, especially since he can summon Gamabunta, who is extremely difficult to summon since he's the boss.
That wasn't my argument, I was just saying there's no real proof Minato can't summom them. My argument already beat yours.