My main issue is that the kaijuu just don't feel threatening. Sure, they would have died without Hibino's help, but: They keep talking about how those other dozens/hundreds of kaiju are already like the biggest class. Then the new one appeared and it was even higher class, yet the vice-captain had zero trouble keeping it in check, chopping of its limbs, even after his suit gave up.

I'd really have preferred a show where any kaijuu is a terrifying event, but here not even the strongest kaijuu can compare to the "badass" heroes.