Jonathan does indeed complain about bugs, but as is typical for this type of programmer he's sure these are somehow being introduced by "Bad" programmers who are incompetent or lazy, not by "Good" programmers like Jonathan.

You get stuff like: "The Jai philosophy is, if you don’t want idiots writing bad code for your project, then don’t hire any idiots." which probably feels good to say to yourself, but of course it's not going to result in fewer bugs.

Jonathan doesn't like Exceptions, which, fine, I agree control flow and error reporting shouldn't be bundled together, but if you're serious about preventing bugs and you don't want exceptions, you need to actually write a lot of error handling, which means error handling needs to be ergonomic in your language. In Jai there might be error flags, you might be expected to check them but if you don't it won't complain because you undoubtedly know best. Pressing on regardless becomes ergonomic like in C.

And so Jai certainly isn't going to do anything about how buggy software is.