As a former retailer , I can say that MANY people/customers were unhappy that the price went up... which in reality it didnt... but MOE is forcing you to buy their insert. There are several folks that actually don't like MOE inserts, whether b/c they don't like microterry or b/c they like other brands better. I happen to also sell my own brand of microterry, which many people prefered, for whatever reason. It is all up to what you like, which is why many people are frustrated by the new fuzzis that force you to spend $3 extra for their insert, which they may/may not particularly like.
From the perspective of retailer (and I speak for many retailers) , many fuzzi bunz retailers have dropped the line b/c they too were forced to purchase the inserts for RETAIL, whereas before we could buy wholesale and actually make a little profit from the sale. So, our cost went up $3 per dipe, but we now make LESS per sale of fuzzi bunz/MOE insert combo. When you consider how many colors/sizes you need to stock to have a well running operation, and then multiply that by $3 each... It really is no longer cost effective to stock them. We have to shell out a LOT of $$ to shelve adequate supplies, just to make the same lousy $4 per diaper, but NOT get to make anything on the insert.
Plus, a lot of retailers had their own inserts made to offer free as an insentive for shoppers to choose their store. So, we lost that advantage... plus we know how much it really costs to make those inserts, and really couldn't justify spending 5x what it really costs per insert.
To make matters worse, MOE has become irrational about how their graphics and logos are sized and displayed on people's websites. Some retailers have been removed from the MOE site b/c they have an inappropriately sized/placed fuzzi bunz graphic.
So, to answer your question... I cannot say whether the controversy is based upon the opinions of former retailers or upon unhappy customers. But the least I can offer is some of the things I have heard from my customers and fellow retailers.
I really can't say much more, though the story is indeed deeper.
FB is still a great product, but many people are not all that happy about the direction in which the company has gone in relation to their policies and practices. There are many other types of dipes out there and people are deciding to go with more ethical business practices.