There seems to be double standards in suspension of disbelief when it comes to storytelling and overall presentation. If people are okay with skinny women being able to lift 5 tonnes, they should be okay with flying fat women.
I think superhuman men moving about in high heels would be involve more suspension of disbelief if only because we tend to see women wearing those at some point or another whether in fiction or in reality.
Perhaps such fictions are coloured by both authors’ biases and experiences though it takes a more open-minded one to venture into those out of curiosity and bravery. Nothing is impossible in fiction in theory though it takes a greater willingness to try out something new altogether.