Honestly, I've developers saying the same thing about IDEs and high level languages.
This new generation of tools add efficiency the same way IntelliJ added efficiency on top of Eclipse which added efficiency on top of Emacs/VI/Notepad/etc.
The more time that someone can focus on the systemsit takes certain types of high-time, [not domain problem specific] skill processes and obfuscated it away so the developer can focus on the most critical aspects of the software.
Yes, sometimes generators do the wrong thing, but it's usually obvious/quick to correct.
Cost of occasional correction is much less than the time to scaffold every punchcard.