That is very different - it's not a matter of language but, rather, a misunderstanding about technical definitions/classifications. Furthermore, there are countless examples in zoology, botany, medicine and many other disciplines in which terminology in "common usage" by the general public is totally different from 'correct technical terminology'.On a simpler example - would spiders ever be reclassified as insects simply because the majority of the population referred to them as such?
I strongly suspect (actually hope!) that "the majority of the population" will continue to regard 230V as a "high voltage", no matter what technical definitions may say.
Kind Regards, John
