People can afford AC fares but unfortunately they are denied it because very few are there. Only two AC 3 tier coaches in this train is absolutely nonsense.
It's not like only daily wage laborers only who travel in this train and even many daily wage laborers in Goa can afford to travel in 3AC to their home towns. They don't travel like every month may be once or twice a year. And travelling in SL coaches in temperatures above 40c is terrible.