That would be excellent language.
indeed it would. But I think the BBs try to talk in the rules as if telling a story, not so much as literally describing in detail how everything works.
When reading the rules you can extract how the game works, but it is not written precicely how it works...
Therefor BB will opt to keep the sentence 'injuries less severe' and will not replace it with, you will get less weeks injury and the doctor does not have influence afterwards...
I as well believe it would rather be boring to read rules that state exaclty as is, rather than in telling tales style. I would rather have my supporters be happy about my games when I win, and will try harder to come and watch the next game and bring some friends to watch this awesome team, then when it would read that the number of spectators will rise when I win a game, and that I can raise the ticket price.
They are not your friends; they dispise you. I am the only one you can count on. Trust me.