Responses to some comments:
About Sacred Shield and nerfing us, ya. As of the current PTR we can't Lay on Hands ourselves and Sacred Shield is virtually useless unless you're Holy, so if they go to live at all similarly our soloing ability will be hurt a lot for the harder stuff.
These runs tend to take about an hour without wipes, or two or more with the harder bosses. Going straight to Skadi and just doing him probably takes half an hour if anyone was wondering.
For the harder challenges like Gatewatcher, Sjonnir, Tribunal, and Anomalus I do reglyph and respec to optimize myself. This includes Glyph of Holy Wrath, Judgement, and Salvation depending on the situation and going into a more solo-oriented spec by dropping select raid talents. I also habitually alternate between a tank weapon with Seal of Corruption (offensive mode) and a healer weapon with Seal of Light (survival mode).
Addons that you can see here:
AF Tooltip Extreme
Deadly Boss Mods
Elkano's Buff Bars
TidyPlates / CleanPlates / ThreatPlates