Instant vs. cook and serve

Yes, I am talking about pudding. Only because I recently got a box of cook and serve by accident when I needed instant. So, I thought I would make it one night for the kids to eat. First of all, who wouldn't want pudding in an instant. You can't beat instant anything. Pudding is not that great of a treat that I should have to stand over a hot stove for it. So there I am reading the directions and it says to pour mix into 2 cups milk and bring to a boil, stirring constantly. Serve warm or cold. Sounds easy enough right? How about the fact that they don't tell you how long to boil or stir. It does not have that bit of information, I know, because I dug the box out of the garbage wondering if I missed it. So, I used my best judgement. When boiling bubbles of hot, molten, magma pudding started shooting out of the pan, I figured it was good. I didn't want another strawberry jam situation. How is cook and serve still on the shelves? Hey, cook and serve, welcome to 2010, everything is instant.