I mean, I get what you're saying but if you think Normal mode Emerald Nightmare is any harder than LFR I don't know what to say. It just ends up being mildly more time consuming having to find a group in the group finder that doesn't require you to link your Xavius kill to get into a Xavius normal group as opposed to just queueing for it. I did nightmare normal first week with a group where half the DPS were doing ~100k DPS, and not one second was spent explaining any of the fights, and I think we wiped twice all night. I'm fine with things that require you to do it on a harder difficulty to obtain, but calling Normal harder than LFR shows some disconnect from the game. the only thing harder about normal mode is getting a group that won't decline your application.
But I think my main issue is that the way they locked the appearances is kind of silly. So the blue version of appearance 3 requires doing normal/heroic raids, the green version requires a lv 15 mythic+ keystone, the red version requires mythic dungeon achieves, and the orange version requires.. doing 8 different world bosses. I think the system would've been more meaningful if entire appearances were gated behind similar "hard" content, instead of telling people they can get the appearance they want solo, just not in their favorite color. Takes away from the ability to show off a color as some measure of ability, because there's no way 99% of players would know my red form was from doing a +15 keystone vs someone who just did the world boss every week for 8 weeks.