If you run a broadcasting organisation, you hire a journalist who discovers that the government is misleading the public in order to justify a foreign war (but who makes his report in a slightly exaggerated fashion, even though that has no impact on the substance of the accusations), and you back him up in the early stages of the subsequent investigation, then that is a resigning matter.
If you are the producer of a kids’ TV show, your external phone lines go down during a phone-in, and you put a child from the studio audience on the line instead of abandoning the item (or if you decide the audience has picked a silly name for a cat, and go with their second choice), then that is a resigning matter.
If you run a TV channel, you hire an independent producer to make a documentary about an elderly woman, and the independent producer cuts some PR footage of the elderly woman visiting a photographer in a way that implies she was more angry with the photographer than she actually was, then that is a resigning matter.
However, if you merely spread outrageous, scaremongering lies, in order to turn something which is entirely and unequivocally safe into an issue of serious concern and worry for gullible parents everywhere while promoting a pig-ignorant anti-science and anti-scientist agenda, then that is an ‘improved training” matter.
Quite right too. We should save resignations for the things that are really important…