And a series of static 1v1s is more accurate than a series of 10v10s, 9v9s and so on?
People have criticized chess for pretty much the same thing wrt tie breakers for world championship, classic chess being decided by player's proficiency in a very different format and decision making.
I'm not saying I support the diminishing player count, but perhaps penalties should be deferred until another (3rd total) added extra time in the final match only. Maybe give the teams 2 extra subs if it is still tied after 2nd AET.