Sorry, I guess injecting technical requirements was... difficult for you to deal with.Why is the total number of players relevant?
And who cares if they don't want it? People don't WANT to do a lot of things. Sometimes I feel like what people WANT is to log in, set their credits to one trillion, and be done with the game instantly.
The point of difficulty is to make the eventual reward feel more meaningful because it was more difficult to acquire, and that's exactly what this would do.
With the side benefit of maybe showing them content they've never seen before.
So, your idea to make a grind wall more appealing is... to inject yet more grind and force people into game play styles they have shown they actively don't want?
It would seem to me that you've forgotten that this is a game, and games are played for enjoyment. If they are going that far out of their way to avoid the content you want to require, then it should be obvious that they don't enjoy the content in question.
Now, because I try not to pose problems without offering solutions, if there were more to ranking than acquiring late stage ships, such as actual career functions, your proposal might have some merit. As it is, all you are requesting is to make the game less desirable for other players because you believe it should be that way.
Just as a sideline, are you already max ranked?