I'm having a hard time understanding how this isn't confirmation of exactly what I experienced and described. I'm sure there are lots of minor trivialities that might get filled out slightly wrong a decent percentage of the time, none of which have anything to do with the validity of the ticket. So if you know all the tiny trivial loopholes you have a decent chance of finding something done "wrong" for otherwise perfectly appropriate tickets.
So yeah, you're able to point out the tiniest unimportant mistakes on a parking citation and then take advantage of that flaw in the system to get people out of valid tickets. It's impressive I suppose, but not something I'd personally brag about.