Right, because EA and Activision are never underhanded...
Big companies who publish for small developers could see this as an interest free loan. They'd be stupid to ignore millions of dollars in free money. It's a pre-order system where they get all the cash up front.
Yes it is possible that some big company could perpetrate some nefarious underhanded scheme to get one of their games funded this way. But I guarantee three things.
1. They would only get away with it once. If they pulled the same crap as they do now, trying to limit and cookie cutter the game until it is an unrecognizable mess, they would have to create a whole new 'Subsidiary' because people would catch on real quick.
2. They would still expect a much higher start up cost to cover the game simply because, as a bigger company, they have higher overheads to cover. And they are expecting bigger profits. So in for a penny, in for a pound.
3. They would have to spend a significant amount of capital trying to keep the knowledge from the public. Being an internet community, and tech savy too boot, you can absolutely bet that someone would figure it out pretty darn quick. And communicate it to everyone and shout it from the mountain top.
So although it is good to be wary, and no one is saying simply swollow it whole without doing the research, I think the likelihood that this will all of the sudden become some huge cover-up for big corporations, is very VERY unlikely. IMHO.