The problem with articles like this is that it floods the market with people trying to get into that field. The colleges are supposed to control supply, but most just take student money and pump out grads to a flooded workforce.
The Computer Engineering/IT field was flooded in the late 1990's with people who came from other background, only to have those people laid off first during the technology recession.
Across the board salaries are not going up, we are still in a depression.