I can see where everyone's coming from really. There are advantages and disadvantages to each approach, and I don't think it's worth fighting over. Obviously the members of an Animal Crossing message board all care very much about Animal Crossing, so conversations can get heated due to the strength of feelings we share for this game, even if our opinions differ. I applaud OP for explaining themselves civilly because, especially in recent years, online conversation tends to skew hyperbolic and it can be rare to see someone speak about disagreements (or potential disagreements) with a level head.
The quote that stuck out to me in particular was this though: "I don't agree with the statement that a game should play the way a player wants it to play. I believe video games, as many other mediums and creations of its own, develop a sense of direction addressed by their creators." I might digress a little here but I agree with this, by and large; it's a definite problem in the industry where creators try to please everyone and spread themselves and their game far too thin, resulting in an experience that may be a jack of all trades but is a master of none (and usually has many more faults than if the focus had been more narrow).
However... I think Animal Crossing games have always had a very strong identity, while *also* allowing each player to enjoy the game however they wish, at whatever pace they want. As evidenced by this forum itself

It's rare, but AC does this really well, I think.
There will always be complaints, and I can see how one would feel like they're unfair or overshadowing positive experiences, but the important thing to remember here is to "take what you can use, leave what you don't" (the exact saying escapes me at the moment). If you agree with someone's criticisms, cool. If not, also cool, shrug it off and go about your day. No need to take it personally, and no need to *make* it personal when someone airing grievances is most likely not intending them as an attack on anyone else.
If a thread is getting too negative for your tastes (general you), close it, and go do something you enjoy. That's the simplest and easiest solution but one that we readily forget, online. Do what makes you happy, and if others are making you unhappy, limit your exposure to them where possible. There will always be bad apples in the bunch and it's best to just learn to ignore them and concentrate on something else.