sepiareverb
genius and moron
....
As to FX, there's no equivalent today. Ilford has their 50 ISO film but it's contrastive and much more difficult for most people to manage. FX was a very tame contrast film easy to expose for full shadows and tame highlights...
Could not agree more with your whole post, but this bit in particular.
Was talking with a friend today who posited that perhaps they found a forgotten master roll in deep salt-mine storage, thus the immediate release. Makes sense. Granted a b&w emulsion is simpler to produce, but given the difficulties resurrecting Ektachrome I don’t picture them just whipping up a batch of this stuff, which has such a small potential market.