the rationale he gave, and which many others give, of english having access to multiple strata and using those for various registers, isn't something that really applies in practice
no one ever cares to differentiate kingly from regal as he did when he gave them as examples, there's no real contrast there, and the fancier you try to go with terms like ameliorate (which ironically is super basic for the languages that inherited it) the more you'll look like an absolute clown
english also has some clear deficiencies that other languages don't have any problems with, like using a single verb for knowledge (to know) rather than two distinct ones, and other issues you can read about here
https://annas-archive.org/scidb/10.1007/978-3-319-05146-8_13/
i myself am very fond of the elegant and fundamental ser/estar distinction that spanish has, and its productive usage of grammatical gender means that instead of having to employ repetitive and unwieldy constructions like "female writer", "male teacher", etc., you just say escritora or maestro with a single word, which is infinitely better
>>24493609>>24493672if by "never heard of it" you mean "doesn't know the term", then you fail as well, because "subjunctive verbs" don't exist
it's like speaking of "past verbs" instead of past tense, a clear blunder
if you want an example of something limited to a few dialects that other speakers genuinely do not understand, look at the habitual be of english