SplitImage hasn’t changed in years, I think it has ‘stabilized’.
Personally, it is not a problem for me as every image I create with SplitImage is run through Imagemagick before use. This is the recommended usage for anyone wanting to use SplitImage. If you use SplitImage to create actual counter art, your source image is probably pretty crap quality.
I think solving it with documentation is the answer.