Chances are the prosecutor can manipulate that evidence to look good to the judge/jury much better than the defense lawyer can make a counter-argument for why it cannot be used in court. At least that has been the trend with stingrays and other bleeding-edge surveillance technology that is poorly understood by judges.

The prosecutors are backed by government and FBI resources (including technical expertise). Your average defense lawyer isn't. Hell, the FBI was even teaching prosecutors and the police to say that using a stingray was under NDA with the company providing it and therefore they couldn't talk much about using it in court (but still benefited from the gathered evidence).

https://www.scmagazine.com/fbi-stingray-nda-instructs-police...