So we can't condemn this unless we have an alternate suggestion for those that can't get any? "I'm not getting any, so immoral hacks are OK"? You could use the same argument to justify rape.
You could, most people would reject such reasoning.
The vast majority of people in dating situations are less than 100% honest. The vast majority of people are also not rapists. This suggests to me that most people do in fact see dishonesty as being different from rape.
Simple condemnation of their deception would have ended after the first paragraph. Continuing on to say "it's easy, just be yourself" supports the implicit rule that unattractive males of mediocre net worth don't deserve physical affection.