It makes sense to have the boosters work the most for the current exotic, but many of the older Catalyst quests are incredibly tedious without a booster, like erianas vow, which takes 400 matches of anything to complete. Don’t get me wrong, the newer ones are a lot easier to complete which is great, but they are still a bit grindy. A nice solution would be to give only the last progress boost work for old catalysts (edit: I meant this in the way that they would receive only a portion of it, sorry for not making that clear that’s on me), that way there is still an incentive to complete the newest exotic now, since that will still be faster. On the other hand, it makes the older ones more manageable to complete.