This argument can just as easily be used to support a claim that generating C via string manipulation can very well be less error prone than relying on a huge, complex API like LLVM.
It is not a given that there are "more moving parts" in generating C output from a compiler than in using LLVM.
The LLVM moving-parts, yes, but you need to write code to use them too, and it's not a give that there are more moving parts in generating C output that those.
> Your moving parts in your own solution, you'd have to write yourself.
That's not always a bad thing for error rates, if the alternative is figuring out to use a massive library correctly.