Someone new to the game is going to be looking at new cards where there is no such thing as

being added to your mana pool. They will understand that <> is a type of mana just like

, and

can be paid with any type of mana. If anything, confusion will be reduced because no one will thing you need to add

to your mana pool to pay for a cost that requires

. Once they are introduced to older cards (including cards from the same block, so great execution there) they will have to learn that "add

to your mana pool" and "add one colorless mana to your mana pool" are older ways of writing "add <> to your mana pool," but there have been two ways of writing it for a long time and it hasn't been a problem.