Nope, that's my point. There is no need to double or even half her screentime. The story should be all about Sophia. Fine, her daughter has a boyfriend (doesn't matter whoever he is) or dylan is attracted to ellie or her friends beside sophia....These things doesn't need focus because:The only time you can really play as Ellie (at least on the Ellie route) is when she decides to kiss either Jules or Elena. Otherwise you're still playing as Sophia.
Ellie would need around double her screentime and a lot more agency to be considered an MC.
1. It does not effect the main storyline of sophia as main character or her decision making whether to go for someone or not.
2. Considering that people were curious about why ellie / dylan are approaching towards sophia or each other, I think that's why these side stories are added...to know a little bit about their background. But playing them as MC, again will not have any impact on future sophia choices whether it will be with patricia/sam/school kids or anyone else. And this game has already lost it's touch with main storyline ( remember we were playing for sophia corruption point / goodwife point) . Now since last 1.5-2 years those options are gone.
That's why, if sophia is attracted towards anyone whether it's ellie/dylan/friends/school kids/ old men/ sam/ neighbour/ school teacher etc......It is not required to show other person background story of why they are coming to sophia or they are attracted to sophia or their sexual life...If LP is open to tell their back story too then yea I would say go ahead tell their sex background story too before any action of Sophia. Atleast that way he will be able to extend sex of sophia to unlimited years but it will create a good story. I am just considering this game as a story nowadays. So, I would definitely like to know all characters sexual background story too.