Yes and no. I've heard the audio a few times, including in an ICS review. It's also a breakdown of resources and a sufficiency on immediate hand, as well as trying to herd 1000 terrified people into your planned channels. It's one thing to pre-plan and to effect "these are casualty collection points" "this is my triage area" "this is treatment area" but when you have bodies being dragged around and people still running/ limping away...
As far as police transport of high acuity trauma patients, in Philadelphia (and occasionally in DC) that works very well and has saved lives compared to waiting for EMS. At least for normal day-to-day shootings and stabbings as compared to the big events. But that's a whole different matter...
I understand the Rescue Task Force concept. I also agree far more with the "groups of police, as they arrive, team up in four man elements and make an immediate dynamic entry to clear the damned building." The military side in me has a theory that I heard from Al Brunacini on the fire side a long time ago. When at a fire - "if you put the fire out, the problems go away. Now it doesn't completely transfer the same to an active shooter situation since: You can have multiple shooters, secondary devices, etc... But the theory does seem valid that if you shoot the shooters they stop shooting. Trained, geared up people who are well guarded and accompanied can certainly help perform critical interventions and help drag people out. Of course, those people who are guarding the trained medics can be better used to, say, go shoot the bad guys first. Then scene becomes immediately safer and the medics don't need armed guards on ready overwatch.
On the articles comments, I loved the one person pushing the tactical medics on every argument. Sweetheart, if I'm assigned as a tactical medic... I'm there for the team. Not to go in and start freelancing every civilian down. We're doing Breach BANG Clear until the final CLEAR! I'm not stopping and using my entire kit on everyone we pass for one of my team to get whapped and I'm not there...