MultiCard Download has been this way for Years...
On the Collection Screen, the Percentage / Progress bar, it the Progress of ALL Selected Cards.
While on the advance settings, you see the Progress of Each card seperatly.
Try this..
Select 2 or 3 cards and start the download..
Stay on the my Collection view.
the Progress is that for all cards currently Selected.
Now Only Select One of the cards..
Notice how the progress bar Now Only is for the Single Selection.
Go Ahead..
Select Two of the cards again..
and the progress bar changes, because now, it's the progress for Both cards.
This is not New, it's been like this for Years.
PS: as the card is downloading, any clips that match your setting will also start to play. So you don't have to wait for the card to fully download to see the clips. Any clip that is complete will be playable.