Misleading their supporters with lies and half-truths is too rewarding to abandon at the moment.
As has historically been the case. It appears that the entirety of the partisan political response by the Republican Party is premised on manipulative language aimed at their followers. Republican legal spokespeople and politicians have coordinated their media response against the indictment of the former President; intentionally mis-describing the charge as being based entirely on the comments made at the rally in front of the White House on January 6, 2021.
Reading the actual document (click) of Impeachment makes it clear that the trial intends to cover all of the actions geared towards insurrection which were acted out over the course of the many weeks following the election where the former president lost.