Agreed. It would be much more meaningful, and less misleading, to display the score they actually use.
SJ, see Post 6. Banks can use different scores based on the product(s) being applied for. It's unlikely that a bank would use the same credit score for a mortgage for example that they'd use for a credit card. I don't know of any bank that provides multiple credit scores, so by default the single score provided likely wouldn't ever cover all products. One would have to do a little research/inquire before apping to determine if the provided score from any given account would be used when applying for a specific product from that bank.