again, if you're not using the mission system, then you can't really comment on how it affects everyone else's view of the game, can you?
I don't
currently use the mission system, because my current activity doesn't call for it. There's nothing saying I wont use it again in the future. But I've been playing the game since January 2015, I've had plenty of experience with all the iterations of the mission system, and that allows me to know the mission system is not the core of the game. Trade, bounty hunting, piracy, exploration, mining, those are the core of the game. The mission system gives you more opportunities to engage in those activities, it's an important tool to give you direction if you lack it, but any changes done to it (or even its removal if we want to appeal to the extremes) will not bar you from those activities. As such, it would not "kill the game".
And of course I can't assert how anybody else sees the game.. and I'm not trying to. I'm just saying that the core of the game is unaffected by missions. On the other hand your OP tries to frighten Frontier by claiming those upcoming changes will cause everyone to stop playing, but you can only really speak for yourself and your attempt to give your point more authority by appealing to some imaginary masses is transparent.
It's a bit like FDEV making changes to a game...but don't actually play it themselves. Surely that can't be the case???
Well no, I fully expect that many game developers do not
play their games. For many of them it is a job and their part in the project doesn't require that they play the game in their leisure time (I don't bring work home either). Of course many of them also
do.
Not that it matters much for the point you're trying to make. What you are saying really, is that the game is not working the way you would like it to while assuming that everybody else has to enjoy the same things as you do and play the game the same way you play, therefore any deviation from this is utter incompetence. While ignoring the possibility that, in fact, not everybody enjoys the same things you do, and that the devs' idea of what the game should be about may be different from your own. And that's fine: you can't enjoy every aspect of every game you buy, and no game can fully satisfy its playerbase.
But claiming devs don't see and don't experience the result of their work because it doesn't match your expectations is the height of arrogance (you can trust me on that, being very arrogant myself even for a frenchie).