I read up a little on here about why they changed the "Hold This" on Papa Loco. I have a little better insight to the claimed purpose of errata, so here are my thoughts.
In the case of the Sonnia Papa Box crew, I keep reading on here that "Hold This" was way too strong for Sonnia, it made her impossible to beat, etc., and that's why they changed it. If that's the case, and the well-being of the game depended on stopping that buff, then when the errata was made it should have only addressed the issue at hand with Sonnia, and not hurt the Papa model for other masters. For example, a change to the "Hold This" should have been something like: "Hold This: At the start of this model's activation, choose another friendly model within 2", the friendly model gains + to damage flips it makes until the start of this models next activation or until it is killed or sacrificed. If Sonnia is the master, this condition ends when this model leaves play." A change like that would address the problem at hand without harming this models ability with other masters where it is not an issue.
A big part of this game, especially to a newer player like myself, is the quest to find a combination of models that will work well and do the best in given situations. It seems that when an individual builds a crew that works well (like the guy with the Sonnia Papa Box crew), probably through years of trial and error and dollars spent, Wyrd comes along and changes or "erratas" it. The motivation behind that? Revenue? Maybe Wyrd thinks that if a crew works too well then people will buy that crew and not buy other models, so they have to make a change when someone discovers a good combination. Maybe or maybe not. Just a hypothesis.
Finding combinations that work good to give a crew an advantage is all a part of the strategy and skill required for this game. When you were a kid and picking your team for a friendly after school game of football or basketball, were you going to pick the small, weak kid or the big and fast kid? Same applies here. All about planning and strategizing. There are several crews I have played against that I felt were very overpowering. One that comes to mind are the Victoria's. On the first activation of the turn, my opponent got two activations through companion or accomplice (can't remember which), and sent Victoria of Blood from over 18" away to engage a multitude of my models. She had multiple buffs, including Fast, Melee Expert, + on attack flips, +2 on damage, plus more that I can't remember, and a handful of cards to boot. Through the multiple attacks and whirlwind triggers, by the time it was all over I had lost Francisco, the Lone Marshall, a Guild Hound, and Perdita was hanging on by her last wound (and only reason she wasn't killed was because I burned through all my soul stones to prevent). Overpowering? Absolutely! Do I think they should errata that? No way! Instead of whining about how overpowering it is and how much it sucks and should be changed, I'll be looking for a way to defend against that next time or a way to take her out before that happens.
Last, I bought all the books with the models cards in them when I started. I use them constantly to research for my crews and opposition research. The more errata is released, the more those books become worthless. If Wyrd feels they need to change things, they should print an updated and revised book to send to those of us that spent $40 a piece for these books. What's the purpose in having these books if they will be no good eventually?
Hopefully Wyrd will consider these things. I understand if they feel they need to do that to sustain revenue, but they also need to measure the effect on the customer, which could end up being worse. I heard Battlefront made that mistake on a prior edition of Flames of War. Evidently, they printed all these different books and were charging up to $40 a piece for them. There were many different books, and customers were buying a lot of them. Then, a few months later, they decided to come out with a new edition that made all those books that people had just bought worthless. Needless to say, many people were ticked off, and as a result, quit Flames of War altogether. I just started getting into FOW with the new 4th edition, but I have had a hard time finding people to play me because of the reason stated above, and because people are afraid of buying the stuff cause it might become obsolete after they buy it after what Battlefront did in the past.