While they're at it, they should rename Yankee Stadium. I take offense to that term, as the British used it as a derogatory term for Americans (or whatever they were called back then), and is nowadays used as a derogatory term for "Northerner" in the South.
I've always thought "character copyrights" made absolutely no sense, and have read through as many of the legal opinions on the matter as I could find, all of which defending such just seem like legal hand-waving. However, what it amounts to in my non-lawyer mind is a character is not a fixed and tangible work. In fact, all good characters (ones that are "protected" under the opinions mentioned above) are dynamic, developing changes over their literary lifespan. Further, no character is actually tangible.