i actually prefer to update each app one by one.
A. i like to see what is being added.
B. i prefer to read the comments before updating so if its a bad update i dont update.
C. i kinda enjoy updating each one manually.
If you look at the screenshot it looks like you go into each app and decide if you want to turn auto updating on on a per app basis.
In the sample, Google Maps has it checked off to allow it.
Great news, good find, alm0614 !