Anything with something remotely capable costs a ridiculous amount.
Also, good luck with having a large steel ball bearing smash into it. Furthermore, good luck with building a cab that that can accommodate pf 'glass' like this, that isn't terribly compromised and hideous.
Oh, and if you think pf glass is heavy and inconveniently messy when you drop it, best wishes with a display sandwiched between two layers of tempered glass. Then there's the connectivity and power supply.
Plus the whole playfield area would look noticeably dull and low contrast. Light transmittance I think is usually between 70-80%.
There is no chance of anything practically useful or economical at this juncture.
The reason for the ridiculous Heighway glass magazine was because Andrew started out wanting and initially claimed to be capable of delivering a transparent OLED pf glass. Not for narrow walkways between machines at home or in arcades to increase serviceability. That worked out well given how impractical, ugly, heavy and prone to causing glass breakage it proved to be.