Might be arbitrary but there isn't really a good reason to change. Compared to the past, right now we have way more people than ever before from around the planet being able to communicate in a single language - English might not be everyone's first language, but it is a fine second language (if anything i'm certain that there are way more people speaking English as a second language than there are people speaking it as a first language).

The main point of a language is communication, why spoil that?

(and FWIW my first language isn't English but i have worked in a couple of other countries with other people whose first language also wasn't English - actually it was several different languages - yet thanks to English everyone was able to communicate, which i think is something to be treasured, not try to disrupt... i mean... we're just discussing things here in English after all)