I'm just going to say, that as much as I love the Tomcat, I'm starting to become exasperated with trying to learn proper carrier landing technique in it, and the invisible AoA indexer is one of the largest reasons why.
The other indicators of AoA in the Tomcat's cockpit are not accurate. This is known (and accurate to the real aircraft, from what I have heard). The "E" in the HUD is especially useless. The AoA tape isn't much better.
Sure, I can land on the carrier without these things - if I say "Screw it, I'm going to land however I want," I can trap every single time. But I'm trying to learn to do it the right way. And the indexer not being visibile makes it a lot harder.
Proper technique depends on an accurate AoA reading. Even more so when you're trying to learn it. And so, not having it is really, really frustratinng.
So I can't speak for anyone else, but I can tell you that my problem isn't unwillingness to learn. It's that not having the right tools impedes my ability to learn it correctly.
From what you said, I kinda get the impression you don't really care about that? But I do. And I for one would really like to see fixing this made a priority..