No, it’s normal that if there a problem in native code the program is crashing, thats essentially what crash is. UE4 has approuch that it reather crash it self in controlaable way and inform you about what happened then let unstable code caused by faulty code to continue running and crash without any information.
Editor crash because your game module becomes part of the engine and editor it self, so if your module crash the entire editor crash. You not first one to complain about it and there way to design it in better way, so maybe in future there will be something better?