I absolutely kid you not. If you're a newb or in a group and enter at 8-8:30pm, you definitely might miss something. If you slack off for a few extra minutes, do dinner for too long, have people in your group that keep using the bathroom, have someone in your group who is coming late, have someone in your group get lost, parking takes longer than expected, the ticket printer breaks and you have to go on a detour to get a new one, get in line for a drink and underestimate how long it'll take, there's a random Terror Tram hold up, etc etc you could EASILY miss a maze or even two. Each and every one of those things have happened to me.
You guys gotta remember, not everyone is a superfan running to every maze by themself or with a small group of other super fans. Even myself, and everyone in my group knows the deal when coming with me (which sometimes can be 8-12+), have had a very hard time completing all the mazes in one night. To the point we specifically started adding Early Access on to our tickets the last 2 years because the first time, we missed something. With Early Access it was a breeze, and I am sure on some nights it's fine too without it, but peak days with Express is still no joke.