Beneficial Mutation indeed must really be either supernatural and/or practically impossible; most evos seem to willfully confuse NS with true mutation to fit their unregulated evo-bias (e.g., "mutation hot spots", and other APRIORI fallacies).
Mike, there are many doctors that entertain your thought, but ...
The god-of-the-gaps fallacy offends serious Evangelical Creos and Evos both. This seems to me to make many Supernatural Evo theories and OEC theories to become a serious blundering of science and the Bible. "Supernatural information supplier" repeating itself AD-NAUSEUM seems to me to fall under this fallacy. (I may be wrong)
There are better, and certainly less dissonant, OEC, YEC, GAP, and/or EX-NIHILO theories (on these and other forums) that support the concept that "no new information can ever be added".