Season Quests

Not to mention, what is viewable is that the season quests here are seen in the "Alchemist" tab of the Quests window. So they should still be placed in the generation walkthroughs, whether because the game data says the season quests are placed together with the main storyline quests, or because the Quest window shows that the season quests are grouped with the other main storyline quests.

On the issue of removing any of the season quests, I think that's a different from its relation to the story. You can't exactly say "removing G11S2, G12 wouldn't make sense. Removing all of the G9S2s and G10s2s, nothing changes" since, looking at them as walkthroughs, there's no story elements told that would differentiate the usefulness of placing the season quests and main quests together. We're talking about whether they should be organized together because the stories are related; we're not talking about how moving the instructions somewhere else will be more detrimental for one guide than it is for another (that would have the same effect for any generation).

And besides, wouldn't G9S2 be just as important to explaining Andras and Elatha's intimacy as G11S2 for explaining the Jenna's clothes change?