veeoneYou missed the most important paragraph:"In determining...

veeone

You missed the most important paragraph:

"In determining which matters we will select for further action, consideration is given to the availability of evidence, and a range of factors, including the likely regulatory effect of any available action."

It comes down to availability of evidence, and unless someone specifically wants to testify against the banks and alo traders then there will be limited, if any, action.