I can understand why it'd be frustrating for every other company releasing games on XBLA, y'know, seeing Minecraft being treating all special-like, but I'm certainly not complaining. Even if Minecraft only gets a set number of free updates, it's certainly better than paying for every single one. Yes, I'm completely bias, what can I say?
Having said that however, it'd be nice to see Microsoft start allowing a set number of free updates or being a bit faster when it comes to releasing sales stats, period. So, speak up disgruntled companies, speak up!