Because it doesn't mean shit...you're conveniently ignoring that the same people no matter what you called them lived in that same area for thousands of yearsLeading up to Israel's independence in 1948, it was common for the international press to label Jews, not Arabs, living in the mandate as Palestinians. It was not until years after Israeli independence that the Arabs living in the West Bank and Gaza Strip were called Palestinians.
you conveniently ignored this part of what you quoted