"Savvy attackers may start looking for patterns in the bank identification numbers (BINs) that we issue, and proactively deleting or excluding them from their dumps. For this reason we are in discussions with a number of banks to onboard their BINs to the system too, further mixing in legitimate cards with tokens."
True. But this only mitigate the problem, doesn't solve it. Whatever BINs they use, there must be some noticeable patterns, simply because these cards are NOT regular cards.
"Savvy attackers may start looking for patterns in the bank identification numbers (BINs) that we issue, and proactively deleting or excluding them from their dumps. For this reason we are in discussions with a number of banks to onboard their BINs to the system too, further mixing in legitimate cards with tokens."