Originally Posted by Diplomatico

Absolutely not. Economy is economy, no matter how the airline tries to massage your shoulder and rub your neck into feeling "special".

Using your definition, United E+ could be "argued" (your word) as a separate "cabin" since UA is selling it as a different "experience" and physically segmenting out a separate and consolidated set of seats for it. I doubt anyone would argue that United E+ is anything but a more expensive economy seat, just as Delta's are simply more expensive economy seats.

Airlines can claim whatever they want in their marketing pitches - doesn't make it true.