Another point is that this episode shows how pointless the prologue with Zoey was. If you've already chosen a girl, you probably won't be able to keep her, and I believe that the vast majority of players won't choose the "others" option because almost all the other girls are nowhere near the level of the main ones (Sage, Jill, Bella...).
Than you are wrong. The others route is the most played route of being a dik. No matter where you go, every poll shows the same. Pretty much...
1. others
2. J&M
And after that Sage/Jill/Bella are changing places... F95 is pretty much the exception (and not the mainplatform for being a dik btw) On F95 Sage and others are more head to head for place 1. Which is no surprise on a porngame pirate site i guess. But doesnt change the fact... the others route is the most played.
The others route is just the most replayable route in the game. With so many different options and outcomes... and with some girls on the others route its getting pretty serious. So serious that its close to the "maingirls" now. Quinn is pretty much a maingirl in that route. But i still woudlnt count her to the main-LI cause its just not a relationship... and never will be, but that is another topic. Rio, Nicole (Envy) and Lily are getting pretty serious too. And of course... Solo Josy, Solo Maya is most probably available over the others route, its pretty much safe to say that at this point. And for Zoey the most fitting choice would be the others route too.
Is the others route my favorite? Hm, no. But still... most savegames are on the others route, and every save differs in many way... you can play others as chick or dik, and pursue many different girls at the same time (never every girl though)
And many of the so called "sidegirls" are huge fan favorite, Nicole, Rio and Lily are always high up in the rankings.