A less bigoted Deku
Banned
You have to remember developers have finite time, resources and money to make games. Valve's philosophy of telling staff "your favourite feature will be cut" exists for a reason. Sometimes there's not enough time to implement a feature, or polish an existing one until it works. Content is always cut, from every game in existence, and sometimes that content can be reworked into something else later.
Maybe publishers think that way, but I don't feel developers do. If they could include each and everything they wanted into a single game they would, but they'd also probably never release a game at all, as the title would get stuck in an infinite cycle of new ideas. Think of something two years into development? You can pull everything back and squeeze it in. It just isn't possible (unless you live in lala land like Valve).
DLC should really just be a modernised philosophy akin to expansion packs. PC gamers have essentially been using DLC long, long before console gamers even heard of the term. It was very common for PC games to have expansion packs released a year or so after the original game. Ideally modern DLC would follow this philosophy, lots of nice, sizable and affordable game expanding content arriving a year or so after the game releases.
The problem isn't so much DLC, it's the awful publishers exploiting it to exploit their customers.
There is also considerable grey area.
Personally, the most recent example of an old(school) established fanbase being forced to deal with DLCs is the Civilization community. Civ5 introduced DLC Civs, scenarios and maps.
The concept was treated with contempt and I think a lot of long time fans simply gave up on the game (there were other gameplay issues that I do not want to get into) but those who stayed were largely satisfied and happy with the pricing. The Steam sales certainly didn't hurt either. But most importantly, The DLC were real meaty downloads in the hundreds of megabytes, and offered major content like fully featured Civ with proper voice acting in the native dialect of that Civ, interesting new units, unique abilites and buildings and not something shoved off to an intern to mass produce.
I am not too concerned about Nintendo's inhouse DLC content though there is a risk they will splinter off more people with a DLC heavy strategy, especially for their first party titles. My view here is to offer good value and perhaps even give the 1st wave of DLC for free, so everyone gets to participate and get an idea of what to expect rather than dismissing their DLC offhand due to some prejudice.
I am somewhat more concerned about what Activision might do. Then again, had they come out with restrictive DLC or no DLC, we would be having the same conversation about how Nintendo hasnt yet discovered the internet.