In gusty conditions, or summer thermals, it’s very common on a/c with moving throttles to prevent the auto throttles from making large power reductions. In auto thrust mode on the AB that isn’t an option. Active throttle lever intervention reduces the amount of power adjustments and the peak power levels excursions. Which is why I’m a big fan of auto thrust/auto throttles off unless weather conditions make a higher level of sutomation more prudent.