> date specified by Sandia after the VWAP Price (as defined in the Forward Purchase Agreement) for 20 trading days during a 30 consecutive trading day-period has fallen below $1.00 per share (a “VWAP Trigger Event”).

> Because a VWAP Trigger Event has occurred, Sandia has the right, but not the obligation, to accelerate the term of the Forward Purchase Agreement at any time

ie. The share price tanked below $1 and that was the condition.

Lookup ZPTA; the price has been below $1 for 6 months.

Presumably the announcements recently did not excite investors and they pulled the plug.