Thanks for the suggestion!
We’ve discussed pets having some interaction with loot - we feel that this is either borderline Pay To Win, or at the very least Pay For Convenience in a way not becoming of a Buy To Play game such as Last Epoch. During that discussion we also discussed the possibility of giving people 1 - 2 free pets to balance things out. Our decision was that this would be quite immersion breaking and would be increasing our workload to force the idea to work. We’ll probably keep pets as being purely cosmetic - we think that’s the fairest option.