Heroic Gul'dan healing discrepancies

Healing on summary page is different to what is on the rankings page. Just wondering why that is.
Tia
https://www.warcraftlogs.com/reports/Qd7MBLwJnbxazRjA

Scattering Field and Resonant Barrier don’t count as healing in rankings. I forgot to add a note to the report rankings section about that. Will fix.