The "large" dose they use (5g) seems very small. By comparison, just 1 teaspoon of MSG is 8g. I could easily imagine some restaurant dishes containing more than that.
If you can imagine a single dish containing more than 1 teaspoon of pure MSG, then either you haven't used it or your tastebuds are challenged. 1Tsp of MSG is more than enough to flavor a several pounds of ground meat, or a quart of tomato sauce. You're not getting 1tsp of MSG in a single dish that tastes anywhere near edible.
