He posted on flyertalk about it and got a "meh, you have to install something? Why bother?" response
5 years later, as a frequent flyer he was into collecting miles and using them on tickets, and he had managed to get business class flights to mobile world congress in Barcelona, but while the deal was going through to sell whatsapp to Facebook there were a couple of delays. Nothing major.
He thought to himself "these are non changeable tickets, they'd better get a move on", then reflected how absurd a position he was in.
1: https://www.flyertalk.com/forum/travel-technology/952359-tho...