I think the CAS case proved the allegations alleged by Der Spiegel were untrue and their interpretation of the emails was inaccurate. The PL are obviously taking a different view to CAS ! although I think they are naively hanging their hat on the time barred elements from CAS… more in hope than anticipation.
I think that is indeed what some sections of the media and many rival fans are hanging their hat on. I would doubt that's what the PL are hanging their hat on though.
The 'time barred' elements at cas were not suspected to be any more incriminating, given the were consistent with the rest of the evidence. Despite how it has since been spun as some technicality.