As long as the trajectory of the vehicle stays within the "safe trajectory box", the range safety officer has no reason to blow the rocket up.

SpaceX acquired a huge amount of data that would have otherwise been lost if the RSO was "quick on the trigger."

Example of a different rocket failure where the range safety officer let the rocket survive until it exceeded the safe trajectory box:

"Astra Rocket 3 LV0006 drifting launch & failure (NASASpaceFlight footage)" https://www.youtube.com/watch?v=HxVoBlgzZlQ