Skippy-
I also had the idea of using fish-food products for frogs. Even though every organism may have different dietary needs- a frog is still a frog.
Basically anything in those fish-sticks represent something that a frog would eat itself, or it's prey would consume.
It's rare to find a safe, known food source that causes health problems in a random species. (Keep in mind that there's always people that have peanut allergys, shellfish allergys, etc.)

I feed my cichlids NLS color enhancing- and the ingredients (although somewhat different from your formula) appear to be a healthy mixture.
I don't tong-feed full pellets to my frog, but rather crush them into a powder for dusting nightcrawlers. I can only imagine the varity of creatures they eat in the wild and NLS seemd to be a good representation of that diet.

As the others stated, "dry" sticks may cause a compaction or swelling problem. (People now throw birdseed at weddings instead of the customary/historical rice because birds eat the dry rice, it swells inside their gullet and they die.)