Yes, you are screwed if RL battery dies, or if you forget RL at home, or if RL dies, or if iPhone runs out battery, or if iPhone dies, or if you forget iPhone at home, or if comms between iPhone and RL die, or if comms between RL and pod die, or if the pod dies, and these are all fair concerns and reasonable scenarios. Hopefully, a PDM-like temp setting feature will be implemented in Loop.
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Below are the code changes in BolusInterfaceController.swift to get crown increments of 0.05U and +/- increments of 0.1U.