You can't believe it would happen for money, but you'd believe it'd happen for free? Anyway, PR is far more complex and subtle than "I give money, you write article". Someone posted a pg essay below that might be instructive.
As to why I think this might (I make no claims to certainty) be a PR-influenced article:
1. Chick-fil-a is mentioned in the first paragraph, no other restaraunt is mentioned until the fourth.
2. The first 3 paragraphs are a visceral imagining of what it would be like to be part of a "pay-it-forward" chain at a chick-fil-a specifically, complete with giggling cashier. Other restaurants are mentioned only in an detached and objective manner.
3. There's a direct quote in paragraph 5 from the chick-fil-a "director of hospitality", the only other quote from a restaurant owner is from a smaller local shop 3 or 4 paragraphs down. The chick-fil-a representative’s quote is a comment on the value and reasoning behind pay-it-forward, the other's is simply a factual one about a lady at his store that does it.
4. Getting a bit more abstract here, but this is exactly the kind of ideal that chick-fil-a probably wants to be associated with, "good-old down home people helping each other out small town america &c.". Note the jab at starbucks at the end?
5. Like op said, chick-fil-a took a bit of a beating in the press awhile ago. People might not remember what happened exactly, but they probably came away with a slightly worse impression of chick-fil-a. If PR was involved in this article then it's probably to try and repair that damage.
As to why I think this might (I make no claims to certainty) be a PR-influenced article:
1. Chick-fil-a is mentioned in the first paragraph, no other restaraunt is mentioned until the fourth.
2. The first 3 paragraphs are a visceral imagining of what it would be like to be part of a "pay-it-forward" chain at a chick-fil-a specifically, complete with giggling cashier. Other restaurants are mentioned only in an detached and objective manner.
3. There's a direct quote in paragraph 5 from the chick-fil-a "director of hospitality", the only other quote from a restaurant owner is from a smaller local shop 3 or 4 paragraphs down. The chick-fil-a representative’s quote is a comment on the value and reasoning behind pay-it-forward, the other's is simply a factual one about a lady at his store that does it.
4. Getting a bit more abstract here, but this is exactly the kind of ideal that chick-fil-a probably wants to be associated with, "good-old down home people helping each other out small town america &c.". Note the jab at starbucks at the end?
5. Like op said, chick-fil-a took a bit of a beating in the press awhile ago. People might not remember what happened exactly, but they probably came away with a slightly worse impression of chick-fil-a. If PR was involved in this article then it's probably to try and repair that damage.