I notice that the elemental shaman rotation doesn't prioritize a 'master of the elements' (talent) cast of lava burst before casting the covenant ability, "Fae Transfusion" - This is an important dps mechanic - as the cast of lava burst will empower fae transfusion with 20% more damage.

Please follow the ticket instructions, provide a snapshot, and in this case, a comparison sim showing your changes.

from https://www.icy-veins.com/wow/elemental-shaman-pve-dps-rotation-cooldowns-abilities

I understand; that's still not following the ticket instructions. Did you check SimC? Do a comparison sim? Do you need to notify them about it?