How do you think amber alerts work in general? The telecoms lease frequency from government, but they go through the corporate telephone system.

The problem here isn’t corporate or not, it’s a specific police department making decisions that don’t make sense, namely sending out data on a specific corpo platform without a legally binding agreement that this information will reach people.

In contrast, my county for example also contracts through a corporation, but that corporation is purpose built to provide municipalities with guaranteed (as much as this is possible) delivery.