It would also be unfair to the big arms guys to have to throw from a position that benefits other types of players, after making the same mistake. Why should one type of player benefit from a mistake over another type of player? This rule lets all types of players pick the shot they are comfortable with. As far as it being not well thought out, this rule has been a part of DISC golf for a long time...
Fixed that for you. The rule isn't new. The only thing that is new is that one can't be doubly penalized for taking relief after going OB or being above 2-meters.
And as with a lot of other rules over the years, I think concerns over abuse or unfairness will prove to be unfounded and unnecessary.