It’s not really about the braying mob. It’s about the theatre desired by the Establishment. Doing nothing would give the lie to this obvious lie. So even though Obama is on record as saying “no serious person could believe the US elections are even hackable” (google it), and his Homeland Security head Jeh Johnson is likewise on record essentially rolling his eyes at the #RussiaHoax, Something Had To Be Done to maintain the pretence for Hillary’s sake.
If TeamClinton was pretending that Russia stole the election (as Hill-symp authors of “Shattered” document on pg 395 of their book on the campaign), then We Will Have Russians Stealing the Election. The whole thing is so similar to a season 5, episode three of the HBO satire VEEP (with hapless and gobsmacked Chinese playing the role of Russians) that it is breathtaking.