I guess it depends on how much trouble you have with too much anger. Very often, anger is counterproductive, not only for yourself, but for actually effecting the change in others you desire.
In that case, it’s often good to “overcorrect” and rather try to feel less anger than appropriate, so that your troubles get reduced.
However, I still think it’s an overreaction and an appropriate amount of anger at the appropriate things is healthy, as in the end it’s actually a conflict within yourself to have less anger than appropriate - you’re forcing yourself to spend more energy suppressing/letting go of the anger, and then having less energy to effect the change you desire.