There's probably another side to this story. Just a guess.
For years, even though the water pitchers were suppose to hold only five charges of water, players have been able to go to locations near a body of water that had waves in it, and fill the pitchers almost infinitely.
I understood that they were taking out that ability and it would mean having several water pitchers in your pack to do your plants as opposed to just one endless supply of water from the pitcher that was filled from a wave.
On second thought, even though they did take away the "endless ability", they did make the pitchers hold 40 charges.
Was fun while it lasted though!!!!