This isn't really what it looks like. It's more. Far more. Why would an airline do this? //

Why might Delta, in an era where airlines entertain themselves by competing in the Nickel-And-Diming Olympics, suddenly come over all generous?

This isn't merely about differentiating its brand. Although when you've built a reputation for uncommon customer service, this clearly fits right in.

What Delta is acknowledging -- and not enough airlines do -- is that there are actually more Economy Class passengers than any other kind.

Treat them well and that's more mouths that can offer more positive words to others.

Moreover, an Economy Class passenger on a long trip might also, on another occasion, be a Premium Economy or First Class passenger. Perhaps when flying alone on business, rather than with family on vacation.