Regardless of your point I will make a more general one aimed at the way this keeps cropping up in the threads surrounding Thor and Jane.
The problem with the Mary Sue criticism was best summed up by Camille Bacon-Smith, who pointed out that the paranoia of characters being labelled a Mary Sue was effectively stifling creativity. It so often gets directed at female characters and the definition has drifted to the point of restricting writers.
I would go further and say the overuse of the label has until recently made it nearly impossible to write a powerful female superhero that wasn’t labelled a Mary Sue, precisely because the genre is one of wish fulfilment. They all had to somehow be damaged or flawed, or have undergone some deep seated trauma. Not actually reflective of normal women.
Write a male wish fulfilment character and nobody bats an eyelid. Write a female wish fulfilment character and you get jumped on by armchair critics.