I'm in favor of keeping aetherflow, I like the mechanic and the lore behind it. I just think there's an issue with Energy Drain and Aetherflow healing being a tradeoff because people will always try to not use aetherflow healing for more DPS. If the devs want people to use aetherflow healing more, I think the best bet is to make aetherflow healing sacrifice less DPS or cost no DPS to encourage its usage - in other words, separate Energy Drain from consuming aetherflow and Ruin II/other weave skill not a DPS loss to use constantly for healing. However, there must be a mechanic where extra aetherflow stacks will be consumed if not used for healing currently, or otherwise we would have the same issue as 5.0 Scholar where there would be times healing is not needed and scholars have aetherflow charges not being used. I don't see this issue fixed by 5.0 so maybe 6.0?
In that regard, why not just have extra Aetherflow stacks become a faerie-specific aetherflow charge? As of now, the Faerie Gauge is only used for Fey Union and Fey Blessing, which usually leads to overcapping Fey Gauge. After all, Fey Blessing is used every 60 seconds to consume 10 Gauge and Fey Union only gets benefit when you don't interrupt the tether (except you have Whispering Dawn, Fey Illumination, Dissipation, and Summon Seraph that all interrupt the Fey Union tether). This would lead to the situation where the Fey Union skill either consume a lot of Faerie Gauge or none at all. I don't think we need more aetherflow skills that give more Faerie Gauge. In fact, I rather these two skills get removed and we get a skill that converts some Fey Gauge into a faerie specific aetherflow charge skill instead.
As for Faerie Specific Aetherflow charge skills, you can consume a charge to activate your own version of Whispering Dawn / Consolation. The key point is that this version isn't reliant on the Faerie activating this skill, but the scholar itself activating this skill. I think this change would allow Dissipation to be used more for actually healing as even though the faerie disappears, the scholar will still be able to access some strong faerie healing abilities in addition to their own aetherflow healing abilities while having more complexity in the aetherflow system for what aetherflow skill best suits the situation now.
This change however, still doesn't change the fact that scholar is lacking non-punishing weave windows and more ways to attack other than Broil III and Biolysis. After all, if it still takes a weave window to move resources around and the only option to weave is a consistent loss of DPS, people will still try to avoid using it entirely. In this regard, I hope they give some more DPS skills instead of just making Ruin II less DPS punishing.