I'm going to try an oversezed M12 and hope it re-threads the plug....really don't want to mess with re-tapping (dealer or done myself).
You'll be fine!
Analyzing the drain plug torque, after-the-fact . . . the drain plug does NOT contain extreme mechanical stress loads; its only purpose is to SEAL. Thus, great torque isn't necessary, nor as we have seen, even desirable.
Thus, a calibrated hand-snugging with an ignorant, rather than a torque, wrench, oughta git 'er done. Worst case (too loose), drip a little oil. NEVER heard of a negligently-tightened oil drain plug loosening to the point of causing immediate oil starvation, although in the back of our minds, carefully hidden, must lurk that fear . . . thus, ironically, trying to PREVENT the disaster, we CAUSE one (strip oil drain plug threads from over-zealous application of torque).
Been there, done that. Oversize oil drain plug to the rescue.
Kinda hard to find an oversize in the corresponding pitch (1.5), but an oversize M12 plug even with the WRONG pitch (e.g., 1.25) might work.