Efficient conversion in tier 2 is obsolete when Ambient engorgement for 35+ is learned. Could it instead increase the duration of pact consuming talents?

Spellbreaker and spell sunder could check if the target is hostile or not to cast the valid one, adding to spellbreaker instead of learning the new talent, with a split cooldown in the middle. Breaker's curse removal mainly works against mages still I believe, making rogue debuff finishers,and warrior marks them as well could help it be worth casting!