All that is going to do is get a bunch of crappy DD's entered in the car show, as it is the same price to drive in, as opposed to walking in through the gates. Instead of 60 good drifters, half of them will be kids trying it for the first time in their FWD. Cars with stock stereos with a couple of 10's will be competing in the soundoff.
All this does is trade quality for quantity. Anyone that has held car shows before, or has even been to them over 10 years already knows this.
They clearly haven't been around in the scene long if they believe, "We understand not many events have ever been ran like this...". NOPI was run at AMS this same way for years - It cost at NOPI about the same to drive in a DD with 2 people, as to park outside, and buy tickets for 2 people. People would "enter" their stock cars all the time to be able to bring in their own coolers/beer. I know someone who got 2nd place there with a stock car, and 3rd with a stock stock - neither of which were show vehicles, and were just to bring in drinks. This is even worse planning - at least you needed 2 people per car at NOPI for it to be worth it. This even t makes it look like everyoen should just drive in - there is no reason to park outside for even a single person.