It is depressing, but it appears that saving color film is too hard for this world. Progress must march on.
The issue with all film, is that they tend to manufacture film in a master roll that is about 10' (3m) wide and a mile (1.6km) long. A 35mm 36 exposure roll is 35mm wide and 1.5m long, so you get a yield of about 900,000 rolls from one master. Film from the date of manufacture to expiry is about 3 years, meaning it's marketable for about 2 years, so you need to sell 450,000 rolls of each emulsion per year. 120 is about the same area, but has a different thickness and you can't use one for both types. You need to sell one crap load of film in order to make it viable. When you had billions of people using billions of rolls of film a year, this wasn't a big deal. Now that the users are down to a few thousand, the chances of selling that 450,000 rolls is getting difficult. So "specialty" and unusual films are not selling as much as they should, and they are getting discontinued. The issue really though is that eventually you need a smaller master roll, if you can economically make a master that is say 70cm wide and 160m long, then you can make a lot more different emulsions economically even with a smaller market. Either that or you need the ability to change emulsions on the fly, something they can't do right now.