It was also pretty damn stupid. That was one of the motivators for me to stop bothering to look. I didn't need the work, and I was looking for work that interested me (this was a hardware company that made a system that interested me).
They maybe didn't like that I used classic MVC for the app, because it is ... less than optimal ... to use other patterns, when writing a UIKit app. Of course, it's also possible that they finally brought in a tech manager, who figured out I was old, so...
But I regularly write full apps in record time. My GH repos are full of test harnesses that I toss together in no time at all. Pretty much every test harness is one that many folks would be proud to submit to the App Store. I’ve had over 20 published native apps, over the last ten years (mostly deprecated, these days), so I’m used to regularly shipping (and maintaining) native iOS apps.
I'd suggest that someone that can chock together an app like that, in just a few hours, while under a serious amount of external stress, could be someone worth following up on. BTW: The library was MapBox. I'd never worked with it before. I enjoyed the opportunity to learn about it, as I may use it in the future (offline maps, and it's a pretty decent dependency).
But that was about three years ago, and I'm actually really glad that I got chased out of the rat race. It just took me a while to appreciate it.