While I agree with your message not everyone had the opportunity to buy a parking pass. You have to donate a significant amount to get a pass.I always get a chuckle out of people who say something wasn't broken. Not broken to you doesn't mean it wasn't an issue for the AD.
What if they were struggling to find people who were comfortable standing in the lot with thousands of dollars in cash?
What if the cash had a habit of magically disappearing?
What if they can't properly staff parking lots as it is and this eliminated having an additional person or two in each lot?
And season ticket holders had a chance to buy parking...with your season tickets. You chose not to. That's not Iowa State's problem.