Well, I am not speaking specifically about this dev or what he is doing, I am just sharing my thoughts/approach to LI's and how I would handle them if I were a Dev....

You can have lots of LI's, but if you choose to go that route, then you have to expact to be at your computer 8 to 16 hours a day 7 days a week (don't ask where I got those numbers, it couldn't actually be from experiance...just trust me) to make sure that you have the content to support that many LI's.
As if just telling a decent story isn't enough, yes, throwing in multiple LI's and making sure that they each ave their own unique personalities and aren't just bland repitition or so non-confrontational that they seem unnatural, just so that their is always peace in your harem, does complicate the matter.
There are a few good devs and dev teams out there. When this game first started, I thought that RK was going to be among them. I am begining to lose hope.