I don't have a problem, I'm not interested in the exclusive Mk4, I bought Horizons because I wanted planetary landings. If Frontier asked me if they could go back on that exclusivity nonsense, I'd say yes. But I'm not the only one they sold it to, and Frontier aren't going to contact everybody and obtain their assent: there are those who simply aren't interested in ED anymore and send Frontier's emails to the spam folder (yet their contract with Frontier is still as valid as any active player's), and there are those who trully value the exclusivity of their Cobra (no matter how petty you see it). And if Frontier can't get everybody to agree, then it's just not proper for them to change anything. All they can do is learn the lesson that exclusive deals are more trouble than they're worth and not do them in the future.
I certainly think that's a lesson they should learn, yes.
But yes, you're also right that I do indeed see this issue as petty - very petty on the part of the people who 'value' that sense of being able to have something others can't
in perpetuity. As you say, there are probably countless people who don't play the game any more at all - and unlike your position above I absolutely do
not think they're entitled to have a say in this. We've already had raised the question of where this supposed 'contract' actually is - but even if the purchase of the game under the necessary qualifying conditions can be construed as an agreement between two parties, I absolutely guarantee you that a half-decent lawyer could find a way around it.
It would of course be better if lawyering could be avoided, and there are two ways that's going to happen. Either people without the Cobra IV finally just shut the frak up about it; or those with it express the general view (maybe they could have some sort of vote, that always works really well) that they don't mind other people finally having a go with their special toy and Frontier revisit that agreement, as they would be perfectly entitled to do in that case, and unlock the damn ship.
(Or they could just make the decision unilaterally because really what actual tangible consequences are going to come of it? Really?)