[Groxx]

Yes. All instances I've seen have been due to byte-size restrictions (so it depends on encoding) or for visual reasons (based on fundamentally flawed assumptions). With exceptions for dubious science around word-lengths between languages / as a difficulty/intelligence proxy, or just having fun identifying patterns. (interesting, absolutely, but of questionable utility / bias)

But every example you've given have been around visuals, byte sizes, or code points (which are unambiguously useful, yes). Nothing about graphemes.