Exactly. This is like the idea of a small one lane highway leading from the city to a quiet farm community 40 years ago, that is now completely gridlocked with traffic everyday at rush hour because the farm lands have been sold off and turned into surburban cul-de-sac communities. Usually the transportation department will eventually call for the the expansion of a highway to a two or three-lane highway to accomidate the traffic. Can't do that on Main Street USA, so alternatives need to be made.
Perhaps this change is not just a simple addressing of a current problem, but also allows for continued and future growth and expanision of the park. We can all find many examples on here about building more rides, revamp Tomorrowland, build the Western River Expedition, etc. They can't really do that as it will bring in more crowds and some of the ideas will increase the park's size and therefore increase the park capacity, unless they make some changes to improve crowd control messures.
We can all be negative, but I will choose to be positive. MyMagic is "suppose" to be about increasing efficiency and guest experience. I choose to thing this falls in the same thinking and that perhaps they are taking the tactic of improve guest experience in the form of comfort and efficiency, before adding more to the parks that may lead to the further decrease of these items. Now you may not agree with TDO's methods, but this certainly is a plausible theory and if true could be very positive.