Halo was never top dog. It had zero competition in the console space. Hate to tell you guys the truth, but that's the truth. Counter-Strike 1.5/1.6 has been a superior multiplayer experience on PC for years. I constantly need to remind people that only about 25 million people bought that first Xbox. And the majority of Xbox 360 owners never touched Halo 3 or any of the other games. The moment another top tier FPS dropped in COD, you saw what started taking place. And then stronger and stronger shooters started showing up. I've become a big fan of Halo for its singleplayer campaign stories.
People keep living in a past where Halo was something it never was. Even what some thought were its biggest launches were outdone by both Halo 4 and Halo 5. Games made by 343i. Halo Infinite also had the biggest launch in series history by far. The game won multiple GOTYs, reviewed strong. So, yea, just another case of people who weren't so much fans of Halo hoping Halo dies and are now here prematurely celebrating what? Nothing at all. Another rumor that will be proven false at the relevant time and place.