I'm thinking they probably don't care about having 99 Agility on that character.
Marina already has over 120 Agility on (his? her?) main character.
Get the world first achievement, then it doesn't really matter if you can't use that character anymore, since you know you achieved that.
And everybody else does as well, since there was the broadcast. The world first Hardcore Ironman achievements are probably being recorded somewhere anyway.