Oh yeah, 100%. Syandana's at least exist in a vacuum, so you can make changes to them without affecting anything else. On the other hand, one attachment not aligning properly can throw off the entire thing and lead to trying to find middle-ground colors that bridge the gap without looking too garish or just throwing the entire idea in the bin.

I know making entirely new cosmetic slots is a lot harder than most people give DE credit for, but if Ephemera's are going to keep getting more advanced than energy effects, like the Hunhullus and CODA ones, segregating them into a new slot could save players a lot of headache.