Not really, first instead of giving 100 to all, we give 90 and 10 leave for the foundation.
Second - whether new created number of gridcoins is N or M per year is so far a totally arbitrary choice. Third - look at Stellar, they are giving lumens left and right and MC is $2.5B. Number of tokens is just one of many variables.

If the fundation asked for money it would be a much different issue.

I thought foundation is a part of the project / community. Is it an independent entity?

Fortht - if usa from your example would invest those 10 tokens in bridges, universities and railways, value of all tokens could double.