Imagine what may be done as long as grunts are just following orders.

But why? Why not wait for a fully equipped team with shields? Sorrounding the house until then prevents anyone from getting out. Unless there's an active shooting, there's no reason not to wait. And with proper protection, police can afford to first identify themselves as shots are extremely unlikely to be lethal.

I always thought it was Hollywood's imagination showing plain clothes police officers performing raids. It's shocking to see that this appears to be common police practice.