Can does not equal it will. It means that it could and can does not mean that the frequency and commonality is such that it becomes a must. Estrogen rebound is far far more common. Prolactin gyno is not that common with SD.
It's like the EPAs estimated MPGs for a vehicle. Under all the right conditions it may get what they claim but more often than not in real work driving people don't get that amount.
So, like I said before I am not saying it can't or won't happen. Just that it isn't as likely therefore doesn't constitute a MUST concern.