I don't know if I agree with that. I've been playing Siege pretty heavily for the past year and a half, so I haven't been around since the beginning, but I have noticed a lot of issues with the game that definitely need to be addressed.
No new maps is a good thing in my opinion. Siege already has twenty different maps. For a game like Call of Duty, this is a pretty solid number to have, but for a game like Siege that is an absolutely massive amount of maps to have. Learning a map in Siege takes far more effort than any other multiplayer shooter I personally have ever played. I'd rather them go back through the currently released maps that have glaring issues with balance/playability (Favela, Tower, Skyscraper, Chalet, House, Bartlett, etc) and shape them up to be viable in both competitive and non-competitive play. I think they've been doing well so far with map reworks, as I find the Kanal rework to be a fantastic reimagining of the map. Kafe Dostoyevsky was also significantly improved, and Theme Park has also been improved though I still haven't learned the new version well enough to know how much I enjoy it. Although I don't think Oregon was super in need of a rework.
One operator a season is perfectly fine with me as well. There's already over 50 operators that provide a huge amount of variety in the gameplay. When adding so many new things all the time, I understand their reasoning that it's just too hard to keep the game balanced and low on bugs with two new operators added a season and a new map and guns added. I'd rather have consistency in my gameplay experience with Siege than have new operators every three months. I say this as someone who has all of the operators unlocked and gives every new operator a fair shake before I drop them permanently.
As for halving the cost of the season pass, I agree they should do that for year 6 and beyond. I do understand that remixed content still takes time and effort like new content, but I see where the argument can be made that half the operators is literally half of the content. But with the amount of bugs I have been noticing creep up in game, I am perfectly fine with them spending more of their time dedicated to making the core experience more consistent and reliable. Anyone who plays the game with sincerity can tell you that the sound, which is integral to the game experience and a key component of success in a lot of rounds, is incredibly unreliable. Hit registration is also something that needs to be consistently checked into, as there are reliability issues with that as well. Some of it is my potato-aim, guaranteed, but there are also a lot of legitimate instances where I'm shooting someone's head on my screen, only to not receive a kill for my trouble.
All in all, I'm happy that they're focusing more on core gameplay reworks, as that's ultimately what Siege should be about. Flashy new operators are nice, but the core gameplay of Siege is what keeps people coming back, not the new gadgets and gizmos.