Before you completely give up on that, I notice the writer of the letter is NOT the manufacturer, but a re=-seller. I have one fellow who comes to me to get Rodinal by the case, because the local photographer print shop and supplier told him it was nolonger made. But turns out it is still available, as you all seem to know.
After being approached to turn my shop digital, I can understand why, . . ."buy this great film scanner for $35,000 (remember I have to be able to aerial film), then to pay for it, tell folks you can't give them the old analog way because it isn't supported." In other words one of the suggested techiniques to force customers into digital is to lie about the availability of non-digital.