Given the fight was downgraded to an A320 and not A321 obviously shows that the flght was far from full. As much as I am upset about the service SWISS offers on flights to TLV in Business Class of which I complained many times, I can tell you that the flight was really downgraded because one of their A343's went tech. As LX uses it's long haul fleet to it's maximum they only have the flexibility with TLV to avoid any cancelation of flighs by downgrading it to A32S if one of the long haul planes goes tech.