Isnt it odd how they used to make adl, bdl, and varmint. But there were a lot of cartridge choices, now there are a lot of models but not chamberings. One has to either get the model or take whatever gun to get their cartridge.
That's probably what got them in financial rough shape, too many models and chamberings, when they were selling the big four mostly anyway.
Making a lot of chamberings and having most of them sit on the shelf doesn't pay the bills.
By getting leaner on chamber offerings, they can make some money instead of losing it.
Granted, sometimes and often, all it takes a chamber reamer (which they cut themselves) to chamber another cartridge, but then there's marketing, making and selling ammo (no ammo, no sales, right?) and other considerations.
That's likely why Remington quit on the .17 Fireball, and a host of other nice chamberings, so early. They weren't the sales wonders they were after.
It's all about money, after all. You can't pay the bills without sales.