It’s no big deal, it’s nice of you to consider things so thoroughly, but i can guarantee you that nobody else gives it that much thought.
People who are in LfR right now are most likely filling vault slots (To buy wyrm crests or something else for the “Nothing for me this week”-coins, i forgot the actual name), since the weekly quests give loot equal to LfR drops anyway and catalyst-charges (For missing tier pieces) are plentiful.
So it’s admirable that you care so much, but there’s no need to give yourself a hard time over it.