"The bone was crushed - it wasn't just a cut injury. The medical documentation from the hospital reported it as a crush injury due to the state of the bone."
Yes. There's video of JD dressed as JS signing some fan's tattoo in June 2015, three months after the March 2015 incident. The upper, as in opposite to palm side, of the finger is still bruised including on the middle knuckle. That to me would suggest a crush injury rather than a clean slice of the fingertip on the palm side.
In fact, poor ickle Johnny aka Creepy Rapey Bastard still cant hold a pen properly to this day, seven years later. There's footage of him signing autographs from a fortnight ago, showing the pen held between his fore and middle finger in a closed fist.
Not that I'm invested, nah, not me.