The facts, as I see it, IMHO, and without any criticism implied:-
It's taken 4 years to produce a B&W film, the delays being largely due to unexpected problems, mostly unforseeable, and underatndably beyond Ferrania's best efforts. There is no reliable indication how much longer it may take to produce an E6 film, and whether this will be a reliable product from day one (or a semi-experimental "Alpha" version) , and competitive with Fuji (or even "New Ektachrome"?) in quality and price.
Ferrania themselve suggested that they would have run out of money if they had not been able to get income from P30, so presumably the Kickstarter money has been spent. IIRC, much of their work so far has been, and is being, done by volunteers? In the longer term they will, presumably, have to pay economic salaries to qualified staff and meet all the ongoing expenses associated with a, still quite substantial, factory ?
Again presumably, income to meet these costs can only come from profits from sale of film. Given that the products, as projected (unusual sizes, specialist types of film, etc., and perhaps, understandably, therefore not cheap), would seem to appeal mainly to us enthusiasts and be unlikely to be sold in Walmarts or Boots, can the volume of sales ever be enough to support the project ? And I believe it is a correct statistic that E6 usage is static and certainly many labs have closed, so, unless Fuji and Kodak (if we get "New Ektachrome?) both pull E6, the competition has to be to draw sales from these two reliable manufacturers. Even more difficult with B&W while several other manufacturers still offer a good selection of readily available and reliable film ?
Not being negative or bashing anyone, I can't see that there is a business plan which is viable long term ? Hopefully, I'm missing something ?