But is it logical to attempt to establish an explanation of a thought process based on a premise that is bogus to begin with?
This isn't about questioning Theory of Mind, but simply a criticism of how they are going about it with this particularly flawed example.
Out of interest do you know a better way?
The mind is difficult to analyse, what interests me is how things are viewed differently by different people, leaving aside "that once you've met one ND you have met one ND" (The same must logically apply to NTs too), then understanding how NTs and NDs view things differently may help me.