The new system does have its advantages, but it also has its major drawbacks if there is a problem.
The older basic 1 channel repeaters and dispatch systems never had failure problems.
If the tower did go down, they simply dispatched from the 911 center direct. Sure they had less range, but they could do simplex still. They could still do fire tone outs, and still communicate. Of course they couldnt do CAD or GPS back then, but they went years without it.
I just feel that the Millions of $$ that were spent on the new systems, they should still have a better fallback system. There is no reason why the dispatch counsel shouldn't ever work.
Heck HAM repeaters are more failsafe and have less problems, on a $150 handheld or mobile and a $2500 repeater setup.
Or maybe it was those bus radios, haha.