I did not use the word "invalid", or anything like that. You've made that up.
The author seems to think that this list is compelling, and that people will find it incredibly hard to do these challenges. But at least half the list is describing stuff that I know with certainty would be no trouble because it is either stuff I already do all the time, or has boundary conditions that have a <<1% chance of triggering. That's a lot more than "could argue".
So the list seems pretty bad, and I would suggest would not actually have the effect the author suggests of building empathy.
