The Chinese leader's message in San Francisco got the attention of U.S. officials because it was delivered at a meeting that was intended to reduce tensions.
B. Autocratic regimes routinely define "peacefully" as a coup or overnight invasion.
C. Xi specifically set an atmosphere of strategic uncertainty by saying a time "hadn't been decided".
That tells me they've given up on winning elections in Taiwan. If they're scheduling it then it's not on Taiwan's election schedule. Ergo, definitely not peacefully in democratic terms.