For what the specialist has told me, it has to do with the car not doing any excercise while the battery depletes. Since I am spending all this time at home due to the Covid, I intend to move the car more oftenly and avoid any other nuisance warning.
Anyway, whether I move it or not, my experience is that if I am to keep the car in pristine condition, then I will be paying a visit to the specialist every year, every time for a different "light". This I believe has to do with the car being italian, and now almost 20 year old, so not only money, but some patience will be needed as well from now on to mantain the 3200.
After driving her home, and today for a while, I still think the car deserves this effort.