A complete overhaul of BP:W to make skill affect Potency rather than duration would put buffs more on par with other jobs. Throw "balance" in there and SE might even consider it.

One thing I'd still like to see most is a message in my chat log when debuffs inflicted by the avatar wear off. Tidal Roar is an amazing debuff, shame you kinda have to guess when to put it back on.