Disney has over 22,000 lodging units in their inventory.
AKL represents about 1000-1200 units of lodging I think. So.. approximately 5% of total room inventory.
I think in terms of Deluxe accommodations, it represents something like 20% of availability inventory. So, if AKL was completely sold out (it wasn't I assure you) then other Deluxe & DVC resorts could be 20% busier assuming even distribution of AKL guests among all other properties... which it obviously won't be.
This is a bunch of typing and long windedness to say .. while some resorts may seem busier, it's more likely given the number of guests being moved, the other resorts can absorb those numbers in most cases and you won't notice the difference.
That said -- it's summer -- Disney is generally busy anyway.
Knox