Wow, thank you all for your replies and conversation related to this topic.
A few other observations:
Emporium was closed at 7:40 as we walked by so only certain stores were open to non-party guests.
Good point about pregnant women and restrooms. Or anyone with a medical issue really.
Yes we should have left prior to 7pm, however we need to keep in mind that the party guests were allowed in early. No it isn't early per "their ticket details", however that 3 hour early item is not mentioned to day guests, they are only informed that 7pm time.
Disney should announce that or let us know when entering the park. Many people plan their day based on wait times for rides, yet at 4pm they all were extended significantly thus making the estimated wait times unreliable.
Now when you really think about it... lets say some people hid out in the restrooms. How many total people would that realistically be? 20? 40? Is that a number that is relevant enough to make people walk all the way back to find an open restroom?
Closing the park, then doing the party is what they do for all other events....
I'm lucky that we have AP's now and will avoid days after 4pm at the parks on Party Days. I'm sure there are many way they could improve the method, but restroom restrictions at a place like
Disneyland shouldn't be one of them.
I'll update when I hear back from them. I hope they take it constructively. It's a difficult item for Disney as the tickets cost the same for day guests as on a normal day when they close at 8pm without the extra people arriving at 4pm. Maybe they don't tell day guests to keep the ticket sales up? I don't know, but thank you everyone for the constructive comments. Maybe someone at Disney will read some of the great ideas posted here.