My mental poster child for "poor" is exactly this person. She had three kids (all in public school), lived in section 8 and worked part-time bagging groceries. The kids had nothing nice, clothes were all hand-me-down or donations with holes in them from being so old. No car, no health care, horrible dentistry to the point of becoming an emergency.
They had a bigger TV than my middle class family, a premium channel package, and ordered pizza not infrequently. I get all the arguments, but when you're working 20 hours a week and living off food stamps and subsidized housing you don't get to have luxuries AND complain about being poor. The person described in TFA as being poor is rare at best.