Nah it's not that bad I've got all research complete, I'm running around with a full set of tools, I have Golems out the wazoo, I live next to a Barrow w/Dark Node (about 40 blocks or so away from my main house) and my Flux just grows grass (ok I do get the very occasional leakage of hostile wisps from the Barrow but if I could be bothered I could plug it or set up a Wisp grinder I suppose but really they are sorta fun to chase down and kill). The key is to be very very careful about exactly which aspects you spill as flux stick to benign or possible even positive ones (natural non-energetic ones all seem to be safe) and I have been overcharging my Aura occasionally by dumping very large amounts of those essentia via the simple method of filling the crucible and shift clicking it, last dump was around 300ish of Herba\Lignum each (lots of grass\wood
)
I do need to do some testing on exactly how these essentia affect the flux since there does seem to be some secondary effects of them.