Does anyone really care about these things? Leonard Maltin probably pushed Disney into releasing this stuff in the high-priced, deluxe-format editions of Walt Disney Treasures. It's not that anyone's really clamoring for this stuff.
Personally for the next wave of Walt Disney Treasures, I would like to see the following:
Song of the South
Silly Symphonies, Volume 2
Disney Rarities, Volume 2
Chronological Donald, Volume 3