No idea if this was brought up at one point. I would suggest the following change. Start stacking condition and effect icons below a selected enemy on the UI left-aligned instead of centered. Always add new effects on the right side. Much like the boon display on the player.
During some of the fights it's rather hard to read what various effects do, because the icons jump around on the display. Sometimes to only way to reliably read them is to ctrl+click on them so you can read it in the chat. It will make it easier to understand the fights before you know each and every icon. And it may encourage players to actually read what the icons stand for.
Yes, it probably looks better when they are centered, but in some fights with many players it's almost impossible to read the tooltips of the effects.