That's the thing. I don't think Italy is ready to have more than 2 teams in the CL anyway. Juve and Roma are the only two strong teams in Italy ATM who can compete against the top Euro clubs. Let the other Serie A clubs battle it out in the EL, much higher chance of gaining points/winning the tournament…sort of like how Germany overtake Italy in the first place.
EDIT: @Trequartista, do you have a link to this? Or you just get it from Wikipedia

?