I would also like to see the public release of schematics, bill of materials and PCB layout files for the load board (board used to bring up the new chip). This can also help accelerate working board designs.
Have you included the PCB design too?
That's only the imaginary chips IP cost. PCB design costs are way, way lower. If you released the chip specs under public domain on tapeout's day you would probably get a few independent community designs + the ones you paid for ready for when you have the chips in hand.