Essentially, this whole American/British English debate is odd.
I try to emphasize to students that after the USA and Britannia parted ways linguistically, it was not like Merry Olde England dug in and defended to the death the purity of the tongue of the Bard. English spoken in the UK today is different from that of two-hundred years ago.
I once took an excellent course on English grammar, 3rd year U level in a linguistics department, from a Kiwi teaching in Canada. His specialty was dialect analysis; his grad students were doing theses on things like the Ottawa valley dialects in areas where successive waves of immigration were French, then Scottish, then German.
According to him, if you wanted Shakespeare pronounced the way he would have, you'd recruit your actors among American hillbillies.