Propellerpilot, excellent description for non-pilots. Happened to me once, shortly after gaining my PPL (I ended up using the technique you describe, i.e. continue the flare with a little bit of power left in to maintain control and bleed off speed - eventually made a 'firm arrival'). Sure as hell learned from it
Shouldn't really happen after 500 hours, but there for the grace of God.....
Btw, this has nothing to do with it being a 210, this is very basic flying skill.
Anyway, best wishes to the injured
