I'd also point out that one of the big assets of the US government as an employer is an implicit promise of stability, which helps it compete for employees against the private sector despite offering lower wages.

The recent half-random half-stupid-keyword firing spree is smashing that asset to pieces, which means the government will have to start offering more in wages to keep attracting competent candidates, which is likely to overwhelm any short-term "savings."

Or at any rate, it will on a longer time-horizon, which might not matter to perpetrators who plan to make a giant mess and leave it behind for someone else to handle.