Because you're under the impression that the way the MX govt does things is supposed to makes sense and be efficient. Anyone that's ever stepped foot in the place would know otherwise.
And you're under the impression that Mexico is a Third World country that hasn't discovered electricity much less computers. We all like to beech and wine about inconsistencies but this is very consistent - they were accepting none of the output from this kiosk. Give me one example that is comparable to this, where a department doesn't accept the own forms that it prints. This would be like Ultramar selling you tickets at the booth but telling you at the boat that the tickets are incorrect.