If governments started regulating bitcoin because it was proof of work based then people aren’t going to pump real money into another proof of work scheme to replace it - why would they take the risk of it happening again when there are alternatives? the mining profit margins would disappear and so would they.
Personally I doubt it. While they don’t necessarily need every vote in the decision, recusal would reinforce the precedent that they have done anything inappropriate - not the tack they have been taking.