Why was Android hardware decoding removed?

My understanding is they’re still working on improving the video performance for older and/or less powerful devices within the environment of the required “new library.” The 2.5.36 app update restores performance for some affected devices, improves it for others, and does nothing for the unlucky few.

From seven days ago:

Which suggests it is a component that could be integrated with the “new library” if demand and available resources warranted it.

This is the only direct reference to the issue I found in the 2.6 beta app thread: