According to the rule change which is quite specific a "vatted" malt or grain can only be called Blended Malt or Blended Grain. i.e. JW Green Blended Malt. There's nothing to stop them saying 100% or Pure on the back label.
I don't agree with it as vatted malt and grain have been about for at least 100 to 150 years but I believe this change was mainly caused by JW ******* Cardhu as a vatted malt in Spain with the label purporting to be a sngle malt due to their lack of the single whisky, see