I'll just start by saying that I believe that quality additional content at a price, especially when it costs a small company like ASW significant resources to develop, is completely justified. To begin with, a video game is a product that a company expends resources to produce, so additional content that costs resources to produce makes a lot of sense to me. For a character like Makoto, that means resources to produce new music, sprites, voices, mechanics, and so on.
But, it seems like there is this everlasting stigma that gamers have become afflicted with to where their sense of entitlement grants them a "complete game" whenever they choose to buy any product, outside of whatever factors might come of it. Stuff like, "It should be in the game already" or other stuff really creeps up a lot. I can live with this, since it’s not my place to say where money should be spent.
But really, you bought BlazBlue at $40, wouldn’t you pay just a little extra to have more quality content that ASW worked hard to produce? Basically, the outrage at DLC is getting quite old. It's an acceptable substitute to paying for a new game every year, if the content is enough to justify the transaction.