They most likely are speaking of the Alpini units which conducted the rear guard action when the Soviets retook Stalingrad. The Bersaglieri and Alpini troops were generally competent to good. The Italian army was largely very poorly supplied and commanded. But like all things it's complicated. You can look at this older answer which I am unsure if it still holds up to current standards by /u/MomsChooseJIF

Here is another older answer by /u/kieslowskifan