From the wiki: "Paladins and Rangers can only brew one potion at a time, even with a potion cauldron."
Now that they actually have to spend one of their limited feats on Brew Potion, maybe such non-optimal builds could be rewarded a bit by having the restriction lifted so they can brew in batches like everyone else?
Also: could paladins get cure moderate wounds as a 2nd level spell instead of 3rd?
not sure why potion cauldron restrictions exist at all honestly
let's just make every character able to brew up to 10 potions in them