Windows are a consumable item on aircraft. They can be replaced because they crack, get pitted up, and other damage.
And the vendor who used a “hotel key card and soap” to test compliance. What does that have to do with anything about a window crack?
“hotel key card and soap” to test compliance”
Unauthorized makeshift tools are a HUGE no-no in aviation maintenance.
You wouldn’t was a surgeon using a pocket knife on you because a scalpel wasn’t available would you?