Re: Rent a plant system pvz2
I see this as an option (designed?) for new player to acquire the new plants he/she did not have since the Arena (seedium) plants only return as plant of the week or Penny's Pursuit on a long rota. This option helps to attract and encourage new players to the game and extended its longevity.
Without this option to get the new plant, I guess there will be less new players staying with the game so even if it were originally an exploit due to a design oversight, I think it will be left open for a little longer until there is another way to entice new players.
Bottom line, if you are a new player or a casual player, I suggest making the most of this option while it is available as this might be changed in the future.