I have to respectfully disagree with you on this, Jes.
Where does it stop? Will we need to pass through security to get into the Poly for a drink at Trader Sam's? What about at the TTC before we board the monorail or boat to get to MK? What's to stop a gunman from taking out everyone on the ferry?
A number of years ago, there was a shooting at the US Holocaust Memorial Museum in D.C. They have excellent security. Where did the shooting happen? Right at the entrance. The gunman didn't get past security but he didn't need to. He shot and killed a security guard before being wounded by return fire.
If someone is intent on committing criminal acts, no amount of security will stop them. Set up a security perimeter at Disney Springs and the crime will happen outside of that perimeter. Think of the damage a car bomb would do in the parking structure or a lunatic with a rifle firing into the crowd from the roof of the garage. Maybe the security stop should be to enter the theme park parking lots or even to exit I-4 onto Disney property. See how ridiculous it can become? There have been cases of gunmen on an overpass firing at cars on the freeway below (not in Orlando but still).
I don't want to live in a world where I have to go through security at every turn. Almost everywhere we go in our daily lives qualifies as a "soft target" whether it's the grocery store, the bank, a restaurant, a religious service, or a movie theater, they are all places that could potentially be targets, and have been on various occasions. We need to just live our lives - and not live in fear. When we start being fearful to step out of our homes, the bad guys have won.