Guccifer2.0 didn't really leak anything damning - so perhap this 'leak' was a red herring. DNC insiders could have performed the 'hack' and fabricated the evidence of attribution, then perform the 'leaking' themselves. DNC gets a distraction and makes opponent look friendly w/ foreign power, Crowdstrike gets more revenue from increased paranoia.
Probably incorrect... but more plausible.