Most areas have regional discrepancies. To my American's ear, the English putting an R sound on the end of many words that don't end with an R seems odd. My west coast ear also wonders why Midwesterners pronounce Missouri with a soft A on the end.
In spite of its phonetical inconsistencies, if the purpose of speech is communication, shouldn't we speak to be understood?
Besides that, we should learn from history. It's my understanding that the United States fought the Revolutionary war primarily because we no longer wanted to add that improper R sound at the end of words. Don't we have more important things to squabble about?
Either way, it's good fodder, or should I say folder, for discussion.