That a university accepts bitcoin donations is not the news here.
Only 1% of the donations will be employed each quarter to explore Bitcoin opportunities for SDSU.
and
The endowment will draw off 1% of its holdings each quarter for one or more campus programs to “explore uses and discover how SDSU could interact with cryptocurrency and Bitcoin specifically.
If I am reading that correctly, they will only spend 4% of the donations each year (1% per quarter), and the rest are held as an "endowment".