@VTDARKSIM it got to production that way, and they got slapped on the wrist by the FDA for changing the formulation of the adhesive (coating) without approval and retesting. Some people claim they even did it despite internal memos warning that the new formulation interfered with readings (I don't have a good source for that).
https://www.medtechdive.com/news/dexcom-warning-letter-cgm-coating-change/743597/