Well, there's a very simple reason for that. This isn't the company that did Halo. I can see the confusion because this company has the same name, but the Bungie team that did Halo is now 343 Industries. They have nothing to do with Destiny. Microsoft took the Halo devs from Bungie and created that new team, and they still do Halo.
The left over "Bungie" team then went through some turnaround and lost a lot of leadership and staff, and most of the remaining "Bungie" team is working on Matter, not Destiny. So yeah, Destiny is pretty pathetic right now. But either way, it's not the Halo team, it's another group using the name Bungie after the Microsoft split.
It [i]was[/i], until the split. People now associate Halo with Microsoft/343 Industries. Especially when Windows 10 came out and they added Cortana. They did a great job of distancing themselves from new Bungie.
Bungie is now associated with a crappy buggy microtransaction focused lazily reskinned boring bounty fested cheating filled unrewarding pile of crap called Destiny 2.