There's this open issue right now on British vs American spelling:

python/cpython#82221

In the past, there's been some merged PRs on similar smallish consistency/grammar issues:

python/cpython#2787
python/cpython#25985

However, there are also these other comments that seem to resist against trivial changes:

python/cpython#58372 (comment)
python/cpython#62480 (comment)

The sense that I'm getting is that trivial / minor grammatical / consistency issues are generally not considered if it's either unreported, too large such that it'll take more core dev reviewing time than it's worth in improvement, or touches on somewhat historical docs. Would this be an accurate summary on whether to consider committing small changes?