It would seem to me that the growth seems to have come to a halt at around the same time that Vancouver/Vantage took over from Peel. Perhaps that's a coincidence of bad timing; or perhaps not? Did Peel see something coming?
In addition - and possibly related, some of the key members of the management team that successfully built the airport up seem to have gone their separate ways. I see Neil Pakey left Vantage recently and Andy Gower went a year ago.
Neil Pakey leaves Liverpool; Nashville celebrates 75th anniversary; Lodz and Batumi welcome charter routes with cakes | anna.aero
Liverpool John Lennon Airport director Andy Gower leaves company - Liverpool News - News - Liverpool Daily Post