Surely you know the phrase "easy come, easy go", exactly in this spirit you are visibly thinking about debris. Probably because you currently have a lot of them, but with the changes in the game I think it will not take long.
I am not sure which changes you're talking about, but with infinite quests I am getting
dramatically more junk that is only good for fragments. I mean, just from this event I've got (so far) 1335% worth of coin rains, 410% worth of supply instants and 128 IM spells plus a few garbage buildings. None of which I have particular use for. This is in addition to excess enchantments I am getting from weekly tournaments, as well as SF from the Spire and Moonstone Library (haven't placed it yet).
If anything, with the recent changes I could be drowning in spell fragments. It's lack of useful recipes, and to a much lesser degree availability of catalysts that keep my SF utilization pretty low. Pet food is useful, and in this case requires no catalysts - sounds like a win-win to me.