I love TP/ They make mistakes. A lot. TP and every other planning tool is simply a guide. If you are relying on their wait time,s etc you may end up frustrated because your schedule is going to go to heck in a handbasket.
By the time I got to teh end I also was thinking this. OP- here's the deal. You are not planning some of the shows well. Indiana Jones, for instance....you need to get there early. Not like Lion King, early, but ten minutes will probably not cut the mustard. You can try and I hope it works, but
I also see the "parade" thinking from TP. Sounds good but I have never found that the wait times are so reduced that we can fly through.
Soarin first thing in the morning has a wait. It always has a wait. It takes time just to walk through the queue even with FP. It takes time. Later in the day the waits are longer. Soarin takes time no matter what time of day you are there.
Stitch is the worst attraction ever. It is the one attraction my entire family agrees that we will never experience again. EVER>
It is freakin hot in August so even if you are experienced with heat and humidity the rest of the crowd may not be so you need to be prepared for how they travel. Shows that are air conditioned will be a priority for a lot of folks.
I would also plan for free dining JIC. If that happens the food courts and the restaurants will be filled. Plan for a little more time eating than you think you need.
I think that part of what you are missing with your planning is that Disney is way more than a list of attractions to tick off your schedule. People are trying to tell you that even the most disciplined planners need to leave a cushion for those moments when the details and the extras call you. You may accomplish all you are setting out to do but there is no room for experiencing what is not listed, and that is a tragedy. If you spend all that time running from one place to another you are going to miss some of the most spectacular things Disney has to offer. For instance, in Epcot there are shows going on all day. Have you planned for them? Just about every Country has a series of shows to enjoy and they are marvelous. If your family wants to see them 10 minutes will not even get you started. Japan has Myuki, the candy lady. Kids love her. China has the acrobats and drummers. Holy Cow! Amazing! Candy has musicians, America has the fife and drum corps, it goes on and on.
You have not even touched on characters. Do your kids want to meet them?
Google Steve Soars and check out the shows in every park or you may be in for a World of changes once you see what you are missing in you haste to refute every person here who wants your family to have a great trip.