How precise does the swiping have to be before you agree that user intent is clear? If my swiping centers on the letters d i v t a t o r - t r u m p, there is absolutely no reason to suspect my intent was anything other than "dictator trump." If the auto-correction failed in that case, they cannot blame it on a lack of precision.

Swiping passes through a continuous path. Even determining what letters were "centered on" requires some heuristics.