This comment definitely appear to be written a bit too fast and with disregard to the context.
Firing is not an issue. The issue is fire to rehire.
It is not only indicative of poor leadership, but also does it break down institutions - one of the key values government provides.
to contextualize: Do you think you can get people to go to war for the US if you can not make up your mind on whether or not to keep them on payroll?
But we will see how the US will fare with broken down institutions.