The linked article reads more like a hit piece with a narrative and omits significant context. Features gems like these:

government employment is a blight upon the economy

government employment is terrible for society as a whole

A more balanced review from the Congressional Budget Office. [0]

TLDR;

1. Wages tend to be lower for government employees, but benefits are better, making total compensation more competitive

2. Even with this effect, the higher you go in education, the more likely wages and total comp are lower for government employees

[0] https://www.cbo.gov/publication/60235