"It also seems to me that if we only tell men to never “pursue”, but do nothing about the “hard to get”-behaviour, then men who follow the new instructions or script will be left with no chance to meet someone. "

I was with you 100% up to here. Women are well aware they don’t have to ‘play hard to get’ anymore. This has been a huge cultural shift over the last 70 years, acting like only mens behavior is changing is naive at best.