You should choose to practice kindness and charity if you can at all help it. Accusing a whole class of people of arrested development is incredibly derogatory. There are healthier ways to frame criticism.
Yeah, I guess it's not really fair to single out the tech worker class. Pretty much everyone in America under the age of 35 now suffers from some form of arrested development.
But an even less kind answer would be that self-help is big business, and to run the scam you have to build an audience.