IMVHO....IPR is a political back fire in regard to.... prior art exhibits of New IP vs. challenged New IP ....for instances where a petitioner, such as GOOGLE, has no skin in the IPR petition game...

A petitioner, e.g Google, need, IMO, do one of the following:

1. exhibit its own IP and apply skin in the game...in trying to obtain a gold seal of their own.

2. exhibit dead IP...and try and simply defeat challenged New IP without any repercussions of the dead IP owner.

3. Or have a healthy relationship with all the owners of prior art exhibits of New IP...if they do not, IMO, there will be repercussions.

doni