No, I had another offer that I took. I'm an average programmer and was able to do the task easily, but that codebase really scared me. Plus the other job was to build something from ground up and I really liked the CTO, so I took it. They were primarily hiring someone just to keep it running than adding new features.

It was a great interview experience though. One of the engineers commented that they gave the same task to other interviewees too.

I think this is a smart and lazy way to hire people :P No need to spend an hour in the room asking random questions, having awkward pauses etc. Just let the candidate fight with the codebase - lazy and simple!