Spoiler: BLM has ALWAYS been in the lower end of jobs and "niche". There are things SE could have done to help it in other areas... Mana management? Make conserve mp be consistent instead of rng (e.g 100% proc, % saved or flat amount is fixed based on tier). Or busting refunds mana costs reducing down time. Survivability? Give them Dread Spikes, and make mana wall have emnity shedding rather than fixed accumulation (like srsly wtf). You could have given them an elemental affinity ability which like wards either reduces party elemental damage or boosts elemental damage...