No and hopefully never will be, but if they ever impose an E.O.6102฿ there might well be a fixed price set for the acquisition!

My point remains that for the average punter Bitcoin is harder money, better for saving/hoarding than fiat and so they will use fiat to buy it and dispose of fiat as quickly as possible for consumption...and they will (mis)use Greshams Law as shorthand to express that. You are probably right to critique that use as it not technically correct, but people will always tend to take shortcuts.

There is also however as you mentioned, considerable market distortion caused by the arbitrary designation of Bitcoin as a commodity resulting in tax assessment and payment obligations which hugely obstructs use of Bitcoin a payments protocol.