The relevance is obvious
They have grown and expanded since rejecting those takeover offers and still seem to be the focus of a lot of interest either from people trying to buy them or people who are worried about how well they are doing and feel the need to be so vocal about any possible negatives. As for the share price. Well all share prices have fallen over the period including that of Air Partner and thats the nature of being a public company.
I am sure the value of Netjets share would have fallen also if it was a public company during recent stock market events. The shares in Berkshire Hathaway have fallen themelves!
The fact remains that EBJ and its continued expansion is becoming the focus of a lot of interest.