First thought I had when I heard it was that they got cold feet with the "autonomous zone" thing, and it being "outside & independent of the US".
Maybe even some leftist soros-affiliated lawyer told them that "chaz" might spell trouble.
So they went for the "occupy" thing, which had existed before as in "occupy wall street" for example.
( CHOP=Capitol Hill Occupied Protest
https://www.kuow.org/stories/from-chaz-to-chop-seattle-protest-makes-a-change )