Saying the June 21st strikes "triggered" a "No" resolution for Polymarket on June 19th and 20th is a strange way to look at how these things work; the absence of action on those specific dates is what exhausted the prediction window.
Every market has a finite window for resolution, and once that time is up, the outcome is locked.
It's like trying to claim a late rent payment caused the landlord to mark last month's rent as paid on time; you can't retroactively fulfill a past condition.
The budget for making sense of market outcomes is definitely running out if we start applying future events to past conditions.