Omar del Sur
In these quotes you shared it highlights that one wife is desirable in the shafici madhab.
Out of the four madhabs, the Shafici madhab is the most critical of polygamy.
“I prefer a man to limit himself to one wife, even though it is permissible for him to marry more, due to the saying of Allah Almighty: If you fear you will not be just, then only one”
Source: Al-Bayan fil madhab al imam al shafi’i
Yes, I agree. up to four is permissible but one is preferred as per Shafi'i