I knew a response like was coming, but I nevertheless want to take some time to answer this. As I said, the overwhelming majority of those 18 months was creative work - concept art, 3d models, vfx, animation, sound fx, etc. These are not the folks who work on any of what players rightly pinpoint as core issues. An animator isn't going to work on anti-cheat. A VFX artist isn't going to dive into the nuances of matchmaking. A concept artist isn't going to unravel why footstep audio sometimes doesn't play.
Even among technical folks, there's specialization. Most of my expertise within Apex is on meta-game systems - challenges, cosmetics, stats, progression systems, etc. I would like to believe I'm capable enough to contribute in other areas - and I certainly have, but most of my expertise is in these systems. I've done work across a lot of different parts of the game - I was part of the team that made core changes to Ranked to make it easier for us to flag and revoke RP from cheaters. But it's certainly not what I'm best at. I was the primary technical person on these projects because I'm good at this. And that means that the people who are good at those other things - matchmaking, anti-cheat, audio, gameplay, etc. - can focus on those things.
I'm a big believer in being a generalist. But the hardest problems really do require a specialist. People are not simply interchangeable. I am not at all trying to dismiss that we have issues - many of them longstanding. And we are working to address them. I also don't believe it's our players responsibility to "understand" the complexity or difficulty of addressing these issues. Players want a game that is fun and that works. And they do not want excuses.
The Katar took 18 months because of how hard it was in very specific ways. I am not saying that should matter to you. But to the extent that it's useful to understand that those are not 18 months that could have been spent in fundamentally different ways, great. To the extent that you simply don't care about that, fair enough.