Rod,
You misunderstand.
Putting the wrong fuel in a car is easily done, low hazard, etc. An understandable mistake. To err is human, etc.
The unforgiveable action is flying again. To indicate that my remarks rested upon that, I said '...face value...'.
If this is all too complex for you to comprehend, I could have a go at a 'Janet and John' version of my posts, but in my third decade in this industry, I lose patience...