If anything, the Wolverine is the biggest demonstration of how imbalanced Quirks can be, as it's only Negative Quirk is its Small Cockpit, while it also carries 6 Positive Quirks, 3-4 of them which might have an impact on the table.
Still, if one is designing a brand new Mech to carry Quirks, it should have that balance between Positive and Negative concept going.