I've also yet to experience clutch slippage/damage from an energy conserving oil
I have. I accidentally used it once in my RM. It destroyed the clutch. The bike still worked, but the clutch was slippy then grabby, and had no predictability to it. Once you let it out it was fine, but every start was an adventure. Nobody riding it for the first time could let the clutch out without stalling it. I raced it like that for three years 
