Because "Software Engineering" isn't (currently) held to the same standards of certification, ethics, and peer review that other Engineering and Medical fields are. Maybe some day.
...maybe?
On the one hand the idea that you can become a well-paid programmer starting from one of these bootcamps is almost insulting to me as someone who dedicated much of his life to the field.
On the other hand, a lot of people do it. I've worked with them. They don't all suck.
Have I wasted my life on trivialities?
What does my knowledge and, yes, mastery count for if Joe Bootcamp can solve Jane Businessman's problems with a few months of training and a bolus of javascript?
There would be MORE malware.
People who couldn't meet the high standards could find income in the lucrative field of malware.
The MCAS of the 737-MAX wasn't designed by mechanical or civil engineers ;)