It's just a shell prompt. There really won't be much in the way of bugs. And it's popular. Doing a quick scan of github issues, there's no shortage of questions

It's just a shell prompt. There really won't be much in the way of bugs. And it's popular. Doing a quick scan of github issues, there's no shortage of questions where some other random plugin or weird terminal emulator has strange interactions. I think the author can be forgiven for not wanting to diagnose such combinations.