Although it has been suggested that Arton’s plays have a strong patriotic flavor, we must recall that, at the time of their composition, her country was in anything but a patriotic mood.
Conclusion
Any apparent patriotism in Arton's plays must have been intended ironically.
Evidence
Some say Arton's plays have a strong patriotic flavor. But at the time she wrote them, the country was not in a patriotic mood — high unemployment, expensive food, soaring crime, low morale.
Evaluate
The argument moves from "the country was in a low/non-patriotic mood" to "Arton's patriotism was ironic." That works only if Arton herself shared, or was responsive to, the prevailing national mood. But many writers buck the prevailing mood — some are uplifting precisely because times are bad. The argument assumes Arton's mood matched her countrymen's.
Goal
The correct answer should describe an unjustified assumption that Arton was attuned to (or shared) the predominant national mood.