There are findings of fact (what happened, context) and findings of law (what does the law mean given the facts). I don't think inconsistentcy in findings of law is acceptable, really. If laws are bad fix the laws or have precident applied uniformly rather than have individual random judges invent new laws from the bench.

Sentencing is a different thing.

Leeway for human interpretation of laws is not a bug, it's a feature. It doesn't make things bad laws.

This was the whole problem with the ludicrous "code is law!" movement a handful of years ago. No, it's not, law is made for people, life is imprecise and fairness and decency are not easy to encode.