Renaming Easter “Passover” doesn’t make any sense, either.
Easter was not renamed passover.
Passover is the name given to that season in the bible. European countries recognized that. In Germanic language nations, a play on the words son/sun and the fact that the Son rose (at dawn) and that the Sun rises in the east, led to a play on words. The easter.
Even today we use the play on words when we talk about “SonRise” services at dawn.