Jan 6 was an attempt to convince the American public that the 2020 election was stolen, and to keep Trump in power. Today, more people believe the 2020 election was stolen than on January 7th, Trump is in power despite causing an insurrection, and all the J6 insurrectionists have been pardoned. They’re even setting up to pay them “restitution” out of your pocket.
You can be the judge as to whether it succeeded or victory was deferred, but violence definitely won in the end.