RE: Arrow spine, weight, Alum, Carbon???
I've got a pretty low opinion of 2213's anyway. The only dozen of them I've ever tried were bent up and beat to crap within a week. They're just not very sturdy. But, to answer your question... Yes. In my opinion, they are too light and too easily bent to use for hunting.
With an XX78 2215, 4" vanes and a 100 gn point, you'd be around 470 grains. If you could bump up to a 125 gn point, then you'd be close to 500 grains. Use my numbers as a general guideline, not as gospel. With arrow weight, there IS such a thing as 'close enough.' Good arrow flight and accuracy is a lot more important than loading a few more grains of weight on an arrow.