Rather than Blitzwing having large hands as part of the aesthetic angle of his design (like this Hulk does), Blitzwing literally came with them, as in they were utterly extraneous bits one didn't want or need but had to pay for. This on top of Blitzwing himself being, let's face it, a pretty rough design in part, that might have benefited from more tooling or parts rather than having the remainder of the budget go to that. This whole "Leader class is a less-than-Leader that comes with a bunch of stuff" should have ended with WFC. I can see making exceptions for, say, Prime's trailer, but this and Astrotrain's Fortnite loot crate and such are a harder sell.
Pretty sure that was what the "whining and complaining" was about, not that they were giant Hulk-style hands.