Hana Barbara has an iconic style. It's kind of offensive to use that as an example of "crappy" animation. That's like saying Jackson Pollock's "crappy," slapdash paintings could never compare to the intricate detail of the Mona Lisa.
Whether or not "design" is important to the business is irrelevant. What we're talking about it the designer's time. If a company who didn't really need an app for their business, but just wanted one for good measure, and hired an app developer, do you think $5 is fair payment? Can't developers accept that there are a plurality of opinions on the value of apps?