Using Energy Drain isn't optimal DPS, using Fester is. A MNK/DRG/NIN doesn't have to drop abilities from their rotation to compensate for TP struggles because they know that when their Invigorates have been used up, they will get TP song until their next Invigorate pops again. This isn't the case for SMN and even if it were, the Bard would need to play Ballad over playing Paeon, which will always be worse if you have more than 1 melee in the group. He could also be playing Foes for the BLM/Healers. If every job was made the way that SMN is then it may be fair game for SMN to make decisions about when to sacrifice damage for MP, but it's literally JUST SMN that has this problem. T10/T11 showcases the MP struggles that SMN has - this is worrying because it's endgame raiding and bringing a SMN would be worse for your group than bringing anything else. SMN is actually alright in T12 and T13 - I wouldn't say they're optimal, but they're great for the Bennu phase of 12 and the adds phase of 13. If this were just primals or something where SMN was struggling then it wouldn't really need to be considered, but since this is endgame raiding and we're only going to see MORE fights that have no breaks in them then something needs to be done about SMN's MP.