That is a cheap cost for a very powerful ability. Quints were recently nerfed from costing 3 aether (2 upgraded) to 4 aether (3 upgraded). There's a reason for that: it's very powerful.
We all know the powerful of a Quinted FFQ, Druid, Otyugh, a mutant, a creature with Momentum, or any creature for that matter. It's basically a very powerful force that should cost more than 2 quanta. Anyways, if you're playing Mono-Aether, you wouldn't Quint so much in the first place except for recluses. Dang, those recluses are nasty.