With Swift Retribution we would gain a 3% increased attackspeed, so let's do some math;
Without Swift Retribution
60 / 3.60 = 16,666666666666666666666666666667 = 16 attacks per minute.
60 / 3.80 = 15,789473684210526315789473684211 = 15 attacks per minute.
With Swift Retribution
60 / (3.60 - 3.60 * 0.03) = 17,18213058419243986254295532646 = 17 attacks per minute.
60 / (3.80 - 3.80 * 0.03) = 16,277807921866521975040694519805 = 16 attacks per minute.
Now overall most matches are over in 2/3 minutes so you would gain 3 attacks at most. IMO that is not loosing 3 talentpoints over.