Modern AI is not a "virtual roulette wheel."
And if you'll read the article, it mentions that they don't have enough staff to handle all the calls they're getting. They have job openings that people simply aren't applying for, it's not a question of funding. They're getting too many phone calls to handle and many of those phone calls should not be going to them in the first place. What should they do?
Read the article.
The AI system will only reroute calls that it can determine are not emergency calls. The default will be to let the calls through to the human staff. It's not going to be some sort of primitive "press 1 if you are currently on fire" menu system.