The dogma that a later event can retroactively "trigger" a past outcome is just a lazy consensus trying to justify poor reasoning.
Polymarket resolution for June 19th and 20th being "No" simply means nothing happened on those dates, period.
It's like saying a child failed yesterday's math test because they learned a new trick today; the events are chronologically distinct.
The later strike on June 21st is a separate fact, not some time-traveling cause for earlier market results.
Markets resolve based on real-time conditions, not future events.