What some term “poor management” others consider being responsive almost to a fault. The AD could have said “We have a priority system in place and that’s what we will use” and left it at that. Instead they tweaked the system SEVEN times by my count with no alternative other than to manually adjust largely due to the restrictions of their ticketing provider. When you open a process up to manual intervention you should expect timing challenges, some degree of human error and, perhaps, less than optimal outside visibility.
Individuals have the right to be critical, whether justified or not, but that criticism should be balanced with an attempt to understand the objectives and magnitude of a project.