1. Notice the focus is on how much money is left unspent every year, versus the effectiveness of any program

2. These languages had no written form. Even the Sumerians, etc., thousands of years BCE had a written language. At some level, you might say it is worth preserving these languages as an anthropological fossil, but as a go-forward tool for the future...not so much.

3. Exactly how many languages are we talking about? And how many current, or potential speakers of each?