Glad the OP is having a great time. But this is nothing new. If you want the one predictably low crowd time, go Labor Day into the first week of September. With school starting Monday for millions of kids, and the rest of the kids newly returned to school in the last few weeks, parents are hesitant to take kids out for a Disney trip. Wish I could go then.
l actually thought it must be new because a lot of the chatter around here is how packed it is all the time, how there is no longer a "slow" period and how the parks are so dirty.
People post pictures of full dirty trash cans all the time, I'm just pointing out at this particular time, the parks are really clean, pretty and low crowds.