How fortunate for the recipients of circa $100 million political campaign donations SBF made from customer funds that a second trial will not now take place.
I'm not sure it is as nefarious as you make it out to be. Had the trial proceeded I'm not sure it would have implicated any politicians (his donations are public knowledge already). This may be a 'slight' leniency given that his guilty verdict will land him in prison for decades. Having another trial on a semi-related charge to run up the 'score' in terms of the number of years in prison is unnecessary. Isn't this also following the terms of extradition from the Bahamas?
Donating isn't a crime. The charges that will never see the light of day in a court are for campaign finance violations and bribery, which are crimes - and not just on behalf of the 'sender.'
The politicians have already been publicly shamed and many gave back the money.
Which ones gave back the money? This is an old source[0], but it repeatedly says "donate or return" and then has a handy filterable table at the bottom where you can discover for yourself that "donate or return" means "donate."