We got our DA letter in the mail before they could kick us out. I am 100% positive they would have charged us with apostacy. We probably would have told them that we didn't consider leaving the WTBS apostacy, since they were the ones teaching something other than the truth. And we had a reams of notes about where they had it wrong -- the Malawai/Mexico hypocracy, 1914/1919/1925/1940's/1975, flip-flops on Sodom and Gomorah, the pyramid; it would have been endless.
They would have called it apostacy, we would (and still do) call it leaving false religion.