Are PHV drivers really reluctant to cancel assigned jobs?

Putting this up as a question to really try to understand the other perspective.

Book a ride via Gojek today, driver immediately messaged me to say he can’t do the ride cos he needed a lunch break. I thought fine, if you don’t want the job then cancel it so I can try to book another ride.

Driver did not respond to my text via app and also refused to pick up when I called him twice.

Subsequently I got frustrated and texted to say I will cancel but said I will feedback to the service centre.

The guy IMMEDIATELY replied, asked me to go ahead and proceeded to insult me (no vulgarities but the sort that implies my parents did not do a proper job in bringing me). Totally uncalled for.

For those who also work as PHV gig workers, can understand from your perspectives?

Is the cost of cancellation on driver’s part so high that you need to start insulting another human being?

I’m sure he could guess that such action was never gona end well.. but still decided to act like a d!ck. This really baffles me.