It has nearly never been the custom of stations that change format to address issues related to the old format once the new one is inaugurated. Doing so is confusing to new listeners, does nothing to satisfy old listeners and simply wastes time.
Since radio is free, nobody is out of money, defrauded or mistreated. And since, nearly everywhere in America, there are dozens of on-air options as well as thousands of streams, nobody is deprived of anything.
Think of it the way you'd consider a store you used to frequent closing at your preferred location. Maybe they had a sale the last few days, or perhaps they took all the stuff to a new location. But they didn't spend time dwelling on the change. This is the classic "move on, nothing to see" situation.