Yeah, that's most likely the case. For a 1144 Diva, it is obvious that it can carry more pots. I have a 1144 Gambler and I mainly use my Power Charge, Impelling Rage and Full House for AoE-ing. Since we know that Impelling Rage is based on max and current HP, it is best used when HP is full.
Though I think 4 on weight is overkill for a Diva. I'd understand if it's a Gambler cause they get 2 HP based skills and skills that do damage to both caster and target.
But I guess it's only a matter of who is using the build as long as that person can bring out the potential of that character.