It's a small town of 16,000 people out in the middle of nowhere with less than 30 officers total. As far as I've seen, they don't have a SWAT or Tactical team (which you probably wouldn't expect in a town that size). Some of them had children in the school. The department may have been horribly wrong but it might be wise to wait for the (already in-progress) investigation to conclude before we settle on a conclusion.Not trying to be too quick to judge here, but all this stuff coming out looks pretty bad for the police, to say the least.
My wife's department trains that they run to the sound of gunfire in an active shooter situation but they stop running when there is no shooting. This is because the shooter could be on the move or could be waiting in ambush or could be barricaded up and continuing to rush headlong could put more people in danger. They will then systematically clear rooms if they can and try to determine the location of the shooter (which can take some time). If local law-enforcement pushed the shooter into the room with live hostages, and they didn't have the training or equipment to enter quickly, then trying to beat in the door slowly could've caused him to shoot all of the hostages or all of the police and then he'd have their weapons and ammunition and no one left to threaten him. None of us were there and we have no idea what they were thinking or talking about.
Look at the Pulse incident. Orlando PD has a SWAT team and also has mutual aid from all of the surrounding departments. The initial officer responding on scene pushed Mateen back into the building where he holed up in the bathroom. After that, the officers had to wait until SWAT mobilized and they could mount enough force to breach through and quickly end the threat. It's a terrible decision to make and depends upon what the shooter is doing as well. My wife was on patrol that night and it shook her to the core even though she didn't respond. Her squadmate (a former Army Ranger with combat experience) that did offer mutual aid to OPD, was in the breaching action, and had gunfire flying by his head still replays that night over and over again. They all wanted to charge right in and be heroes but sometimes the best course of action is to wait and proceed with purpose and coordination.
Thank God for BORTAC and their response.