Streams for Limit and Echo are tracking for the % on best attempt is using a creative math equation for that number based on the bosses health, which naturally will be different from based off the assumption the fight is done at 50%. Given this fight essentially stops at 50% of Sylvanas health Normal and Heroic, the assumption is the same is true for Mythic unless we get lucky with a super secret phase. Have no fear, I will make that a bit less math for our updates today.
Mid-morning for NA, evening for EU we have a day ahead of us and to my dismay, Sylvanas requires math for the % progress.