I worked on converting an existing knockoutjs SPA into a PWA around that time. I won't claim it was a pleasant experience but it was probably a lot easier and quicker than a small team of webdevs learning mobile dev and cheaper than a new hire. It wasn't a small or basic app, but we did have the advantage of it being a B2B tool that would only be used on android tablets. IIRC it was going to be either extra work or maybe even impossible to get the same functionality on iOS/safari at the time so we just didn't.