any line judge who have two successful challenges against them should be replaced. That will make them fair.
Not sure if it's the acoustics of this hall, but every time SJH or WYH hits a clear or smash, the sound is beautiful and crisp. Very pleasing to "hear" these two play. SJH seems to be tired, but she needs to hold on to win this game or WYH i suspect may have more stamina and win the 3rd.
If they have one successful challenge in any match, they should not be deployed in the next match or day.