The primary function of an equalizing charge cycle is to "equalize" the voltage among all battery cells - a fully charged battery, in "good health" will have a voltage reading of 2.2 volts per cell. Over time the voltage will begin to vary from cell to cell - the equalizing charge cycle will do this. But you need to equalize charge when the battery is nearly discharged (near 80% discharged) and that a full equalize charge cycle takes about 16 hours to complete. This is why most people will say do it over the weekend.
Utilizing this charger function will help extend battery life and insure the proper voltage is being delivered to the electrical/electronic components.
I have always advised my customers to train & make one person is responsible for battery maintenance & charging to avoid the "I thought you did it" syndrome.