I think you're drawing the line way too narrow. It is a story about "A wife and mother" and Dylan and Ellie are Sophia's children with an strong emotional bond. If L&P would treat these two characters the same as all others it would certainly doesn't do the game justice.What does personal preference come into it? I'm talking about removing storylines that contribute nothing to the advancement of the protagonist's story. If I wanted to argue for my personal preference, it would be something like an Ellie POV of her and Jules getting up to shenanigans - the things that are easily and have been done in a render or two of discussion. Or Jules' MSND performance.
But I'm not arguing for that. I do agree with you that Dylan comes off worst. He has made the slowest progress with Sophia so far. At the slowest rate. But that's precisely my point. Dylan's POV was pure fan-service and didn't serve the story in any way. It only gave Dylan the chance to see women naked. But not Sophia to invite Dylan to see it, which might have advanced the storyline. L&P could easily have introduced Dylan to Marie at the salon. If you take the popular events on the Dylan route like the Bikini Fashion show, and remove ones like Sophia pushing him on the swing, his progress would probably be much better. Around the time of the Yoga event, there were many posts here asking if it was going to be "another shitty lesbian update", so I suspect Dylan was added just to quell those people. Don't know if it was like that on Patreon.
Were you around in the thread around the time of the Yoga event? We had our own poll for hottest event. Despite Dylan being more popular at the time, it was the Ellie/Julia event that one. One of the main factors was that of the events chosen, there were 2 Ellie and about 6 Dylan. So all the Dylan votes were spread out, and an Ellie event won the day.
I suspect something similar is happening here. There's been so much focus on having Dylan events that the quality of each event and storyline suffers.
Also, I think, for a good story it is better to describe a smaller group of people in more detail, and have more events with this people involved rather than simply have a lot of disjointed stories were there is only little depth in the charaters (e.g. like the old guys). For example, It helps the story to know that Dylan is a voyeur in general and not limited in his interrest to Sophia or Ellie. This brings his behavior into a better understanding and could also be an important basis for his Cuckold path incl. a good reason for Dylan saw the event beteen Sophia and Sam. Even though Sophia is not allowed to know anything about this yet (similar to the event between Dylan and Amber), this is certainly not insignificant for the further course of the main story (and will most likely also results to some events with Sophia direct involvement). In any case, the possibilities for interesting entanglements in these stories (with Dylan as a 2nd main) are much better than in all the side stories (with only weak side characters, like the old guys).
BTW, I have nothing against the lesbian stories. They are a very importend base for some Ellie events, i guess. It's just that there are a lot of individual stories that are at least in part poorly integrated into the main story. The event between Ellie/Julia/Sophia was so strong, because, as with the events including Dylan, it is not only connnected to Sophia and Julia, but also one of her childern. This brings so much more story progress, that the event with Alyssa, even including way more sexual progess, is less important for the main story, i think.
In general, I think Dylan is probably the most important character in this story, next to Sophia. If anything, L&P should expand his part and not reduce it. Otherwise, the game runs the risk of simply becoming a collection of unrelated stories.