I'm not getting how asking for enemy Dragoon AOE effect to have a separate indicator to differentiate between friend and foe is in any way a skill issue by giving players clear visual prompts to watch for. You still have to watch for the visual effect and react to it, which is skill. Plenty of other AOE markers distinctly denote when they're hostile, which is completely reasonable.

If anything, I'd argue that dragoons whinging that their AOE markers need to stay obfuscated is a skill issue on their part. Learn how to work with your team to land your LB effectively.