From my private experience, telling a guy he is not good at sex or whatever is just not a good idea. I always got extremely rude texts back even tho I was polite and explaining the situation. So maybe those girls want to avoid exactly that.
I think the issue of not taking criticism well goes for both sexes. However, for men, the issue can be more difficult because it's more of a physical limitation. His penis too small, too big, ejaculates too quickly, erections problem, no pumping rhythm, clumsy, etc... Something that's more difficult to correct.
Where with women, it's often a mental or technique issue, not so much a physical limitation. She's terrible at blow jobs, terrible at hand jobs, doesn't want guys to kiss her vagina, doesn't like doggy style or some other position, won't drink sperm, only wants to have sex with the lights off, etc...
However, 1st or one time sex can be very hard to gauge or judge the quality of sex. Because of nervousness, being drunk, etc... particularly for men. Many women don't realize men get nervous or to the extent too much alcohol can affect the penis, nor how her reluctance or nervousness affects him.
There can be a huge difference in performance between sex the 1st time and the 2nd or 3rd time. So being too negatively judgemental about 1st time sex, can be a bad mistake (man or woman).
Also, as people get to know each other sexually, it becomes more clear if they take to polite criticism or instruction/teaching well. For example, I've met women who I could teach how to do a BJ, and those who couldn't learn. Sometimes a woman can surprise me with her energy and even aggressiveness/passion, where I thought she was a dead fish in the 1st encounter. This is something to be seen over the 2nd to 4th sex encounters. With some people, sex does improve with time. But you have to give it a chance to make a better judgment.
As I mentioned, there are many other reasons why women have one night sex and run, and they have nothing to do with performance. It can be more for the thrill of being naughty, they want to hide sexual escapades from a boyfriend/husband, stay anonymous, think getting sex from guys/or better guy is easy, etc...