I've noticed a different behavior with the Normal Pattern Provider to the Extended Version.
Heres a snippet of the Ingame "Compass", explaining the Pattern Provider's features.
"Pattern providers have a special interaction with interfaces on subnets: if the interface is unmodified (nothing in the request slots) the provider will skip the interface entirely and push directly to that subnet's
storage, skipping the interface and not filling it with recipe batches, and more importantly, not inserting the next batch until there's space in the machine. This works correctly with blocking mode, the provider
will monitor the slots in the machine for ingredients, instead of the slots in the interface."

The First Part works correctly, but the Second one isn't working with the Extended Version.
It does not work with Blocking mode.
I'm playing the Modpack "All The Mods 9", Version 0.2.60.
The Modpack is using Version 1.1.8 of the Mod.

Can this feature be added to the Extended Pattern Provider?

I think the issue was on my end, I didn't set the Storage Buses on the Subnet to "Report inaccessible Items".. Which was the cause of this not working.