I know I'm a terrible cynic but it is still lazy uncorroborated reporting.
Essentially, Man posts story on Farcebook and BBC contact him to verify, he repeats post and tells them he doesn't speak Welsh and runs an events company that puts on live music shows.
Sorry but the story sounds just like the Navajo indian version and many others and to be honest sounds like a load of boll*x to me. The timing is suspect too.......A Muslim woman speaking Welsh corrected/verbally abused by a man who is then told off by a woman sitting further ahead at the time of the referendum where immigration is a hot topic..........I know I'm a Cynic, but if it quacks like a duck.....