I am glad you can see by yourself that this beautiful summit does not meet the required prominence.
Everyone would like to bend the rule to get the summits he likes included. Hence the simple and unique rule of P150.
You might have missed the fact that the major review just performed ADDS nearly 3.500 valid SOTA summits in Italy, while removing the ones that did not meet P150. It also corrected an awful lot of mistakes in the coordinates from the previous lists.
Nothing prevents you from enjoying and/or activating any summit you wish in Italy, but only the ones with P150 are part of SOTA. You might also want to consider other awards schemes like WWFF, as many summits are also in natural zones: maybe you can activate some of the places you love but that do not have a prominence of 150 meters, and still participate to an important award scheme.
Now, as you show an interest and abilities in the field, may I suggest that you propose your help to the many Association Managers to improve the summits data in their association ? The more eyeballs focused on the maps, the better the data will be.