The other way you could take his comment is he doesn't want to have to build apps like Launchaco. Because they way you interpreted it, which is probably correct

The other way you could take his comment is he doesn't want to have to build apps like Launchaco. Because they way you interpreted it, which is probably correct, is completely ignorant. Launchaco generates marketing web sites. Web developers build the web apps that some of these marketing sites are trying to sell. It might be a reason not to become a web designer though. (Disclaimer: I am a "web developer")