My wife says that "should" is a cognitive distortion

.
(She has a lot of counselling experience and recognized counselling credentials)
As far as I can tell, some of the discrepancies extend back into the times before Kodak Alaris existed - they originated with Eastman Kodak.
And as for Sino Promise, they got (and paid for) the business at just about exactly the same time that their entire business was essentially shut down by a worldwide pandemic. And when they took on the black and white photo-chemical business, it was still in the midst of dealing all the continuing disruptions that had resulted from the first Tetenal bankruptcy, and the corresponding near disastrous attempts by Kodak Alaris to move to US production sources for most products. So I have low expectations of them on the documentation side when it comes to D-76 and a few other legacy products.
If they should get back on their feet in this part of their business - doubtful at best - I will have much higher - normal! - expectations.