Amazon scraps partnership with surveillance company after backlash

From the article;

“Following a comprehensive review, we determined the planned Flock Safety integration would require significantly more time and resources than anticipated,” Ring’s statement said

Given the timeline of the change, Amazon was capable of doing the review very quickly.

Why didn't they do the review before launching, and perhaps even working on the feature? What new data did they receive that resulted in this change in their posture?