Don’t get too excited. Excepted service employees are still hard as hell to fire.
The bigger effects are denying the AFGE dues paying bodies, making it moderately easier to get better candidates for a job hired at wages that will be attractive, and making it slightly harder for a govvie to burrow into the system by automatically getting hiring preference at a different agency if there’s a reduction in force in an agency.
At least half of the existing civil service jobs out there today haven’t been necessary since the advent of the personal computer, but the rules are unwieldy and difficult to change. A wholesale redo of government employment would be better, but that would take legislation and cooperation with the Dems, who would rather have a tantrum than allow the people a win.