I assume people are pissed off because its building something that people already hate and its a fully AI generated post that is jarring to read.
Nothing pisses people off faster than calling up and getting put on the line with a robot. Like if we're thinking about this problem and how to solve it we can look at other examples like a website with a booking form,call the mechanics cell directly, hire a receptionist or worst case outsource the receptionist to a booking agency.
The alternative here isn't talking to a person. The alternative is leaving a voicemail and praying for a callback. Likely, you don't even leave a voicemail and a match is not made.
Asking a business to hire a receptionist is probably a bit unlikely for small businesses in today's environment.