Losing multiple cities to a tiny domestic invading force of mercenaries after completely losing control of said force due to lack of command discipline, and finally only being able to force them to disband by threatening the families of the mercenaries involved isn’t exactly a sign of strength, though, is it? It’s not exactly what we’d expect of a professional modern military.
It would be like if Erik Prince took his Blackwater army and started marching on Washington, capturing towns along the way, and the US army was helpless to stop them until the American government threatened to hunt down and kill the family members of Blackwater mercenaries.
That would be considered unusual, and not really a sign of political or military strength.