SCH needs some nerfs

[Limonia]

Sometimes I think they should just remove Energy Drain from Aetherflow (or remove it completely because it's an ACN ability anyway and put the MP on something else) and keep that only for healing.
I got too many SCH that only ever use their Aetherflow stacks for Energy Drain and nothing else because they would lose dps and MP if they did. If people are so low that Indomitability is truly needed and they still refuse to use it instead of Energy Drain there's something wrong. It is really great that they dps a lot but if they completely refuse to heal becaue of that they could also just go as DPS if everything the party gets is Selene's Embrace.
I'm also not talking about high-end speedruns here where every action is perfectly laid out beforehand but content where people could still mess up. I also personally believe casual or midcore content should not be neglected completely.

What do you as "experts" think about that? I only know that it's annoying to get a SCH as co-healer who refuses to heal and then uses Selene in content where getting heals would be nice, like in learning or casual farm parties. Do yo think content like that should be considered or should everything only be balanced around perfect play?