I don't know, people from outside our area make some strange assumptions about how things should be pronounced.
We have Seamas Avenue here, pronounced as it is spelled sea-mas. People (from the south particularly) want to call is shay-mas. How they got shay-mas i have no idea, makes no sense.
People want to make everything Spanish. We have Don Julio Boulevard......pronounced Don Jew-lee-oh not Don Who-lee-oh because Don Julio was Portuguese not Spanish or Mexican.
The city of Vallejo is va-lay-ho not va-yeah-ho.
Yosemite is yo-sem-it-ee not yo-sa-mite