Picking up a couple of points:
The water came into the TBM via the door, which opens upwards from floor level.
Most of my engine failures....correction...all of my engine failures have resulted in both the engine and airframe being returned to service, either with new mags, CSUs, replacement fuel feed pipes, new turbine blades or whatever. Those in multis have been flown at leisure to convenient runways, those in singles have been limped or glided to runways.
So IO's vision of "rivers of oil" doesn't really bear analysis.