Modern World Nations: Thailand

I can't help finding the following paragraph written in a book annoying:

Sawadee! Welcome to Thailand! Sawadee is an all-purpose greeting that can mean good morning, good afternoon, good evening, or good night. By putting your palms gently together under your chin with your head tilted slightly forward, you have greeted your hosts with the wai (form of greeting) that is used in Thailand. If you want to be even more appropriate, use the wai and say "Sawadee krup" to greet a man or "Sawadee ka" to greet a woman.

Does anybody know what's wrong?

First of all, we pronounce 'all-purpose greeting' Sawasdee or Sawaddee, not Sawadee.
Secondly, you use the wai and say "Sawaddee krup" if you ARE a man, not to greet a man. Same scenario, you say "Sawadde ka" if you are a woman.

motto: you can't believe what's written in a book. (I could be very pessimistic when it comes to something I have a deep knowledge.)