Although I haven't been this year and only went once last year when I came back from the UK to visit, I personally have had major issues with the entrance area for years.
For example:
The little doorway through on the left for season pass holders or people with tickets down to a max of 2 people to pass through at once... then you are hit immeditately with the "island" that you then have to go around to funnel again into the crowd heading towards the entrance gate. People walk through the gate and almost immediately stop. Which grinds the entire line to a halt. The scooter and stroller rental area being right there along with most people just being comepletely clueless (sometimes even long time visitors) just wreaks havoc. Once you get past that necked down clusterF&CK you are limited by the width of the pathway and people again walking loosely and cluelessly up the small hill to the hospitality house. Which had gotten better with clogging the main aisles with items at least but a few years ago was just packed with souvenirs so much it was hard to move through.
I am a mechanical engineer. I like to look at things from an engineering perspective. I have been saying for years that SDC should have an industrial engineer on staff. There are tons of forumulas and rules of thumbs to use for capacity on things like walkway widths and things like that. Disney and larger parks have a person on staff who looks at these things and makes ingress and egress less of a mess. But I will say, if they used proper analysis, it would show that the entrance area is woefully lacking for the capacity. The problem is that the entrance area is not the only problem area. Anyplace that chokes the walkway down from wide to narrower causes issues... think the bridge heading down to the right by the candy company. And many other places. Every one of these choke points leads to slowdowns and chaos... think about traffic on the highway and when a lane is closed and the backup this causes... These are the things that should be looked at with a critical eye... but never seem to be