I took my Strida clone in a soft bag on a budget airline recently. It had to go as hold baggage, obviously and picked up a scratch and a broken rear light. The bag also had a few punctures implying that the thing got a roughish time in some big container load of baggage. Could be it was at the bottom of a couple of hundred pounds of cases and that they were joggling around during the journey.
Had it been a Brompton or an expensive Dahon, I'd have been worried. As it was, a £110 clone is expendable. No damage that would affect its functionality, but if it did regular unattended aircraft hold trips, I wouldn't count on it not getting badly knocked about.