A couple of issues with your theory though.
First off, even with the island being packed right now, no one is riding DC and Hippogriff. There's no way that you can force guests to queue up for the ride. They may be designed for long lines but it doesn't mean guests want to fill them up.
Secondly, there have been fights in the line to get into WWoHP so who is to say that it can't happen from mass crowds in Hogsmeade?
Finally, if they did get rid of the line into WWoHP, can you imagine the insanity. Even without Universal creating the organized line, there will be a line/crowd to get into WWoHP just due to the fact that the crowds are that large. Honestly, I think Universal is handling the situation just fine.
Let me see if I can address this: Again dude, just my take on it:
Firstly, Yes, theres ALWAYS the possibilities of a fight. Heck, I saw a guy get Tazered by the cops during the MardiGras parade!
But consider the difference between folks moving around (even in a crowd) and folks stuck in a line for hours:
1. they are in direct heat - no shade. Ride queues are designed with that in mind (shade and fans).
2. Theyve got yellowshirts screaming at them constantly to stay in a line as not to block foot traffic - not much room to spread out and again no shade.
3. NO information given - FIRST HAND EXPERIENCE: they formed up 2 virtual lines, alternating between the "line sections" to try and seperate out the lines to utilize both enterances (gates) to WWoHP - after an hour in the line going to the back gate they told folks this was no longer the gate and they had to get into the other line, but didnt bother to lead them around, etc forcing people to have to go to the back of the main line and basically start over! You NEVER saw so many angry guests in your life in one place...and I can tell you a couple of yellow shirts almost got punched out over it!
4. By example, lets say you let 5000 people into the area, and you arent going to let anyone else in until 500 people leave so you can let a new group of 500 enter. Now most people are going to line up immediately for FJ, and then mingle around, maybe get back in line for FJ or get in the DC or FOTH queues. But you havent given the opportunity for new folks entering the area to "choose their path" per se, so the pattern of people does not change very much. Given this scenario, you will NEVER fill the other two queues because you have not changed up the numbers or the patterns. No you cant force people, but lets face it: on an average summer day before WWoHP existed, DD would have at least a 45-60 minute wait. You have just added a whole new Land (shops, etc) which is more space for people to access, you have added a new attraction whose queue coneratively should hold at least 2500 people without packing the lines, thats MORE SPACE that was not there before. So just in numbers, theres more space to put people, theres more space for access, simple math: open up the access points and folks should naturally migrate to the unutilized areas. Especially if they "get the weenie" at the end - in this case get to do a ride. But if you limit access and people arent migrating and leaving, your areas do not have the chance to fill up.
Notice that Spiderman has been posting 60-90 minute waits all week.
Why then is DC not posting 60-90 minute waits when it has every summer in recent history, even in a recession, AND its part of WWoHP?
RESTRICTED ACCESS to the queue area!
Part of the job of both themed lands AND queues for rides is to literally PUT PEOPLE SOMEWHERE to avoid exactly what UO is creating with the lines just to get into the area iteslf! THATS the part I am having a hard time understanding in all of this.