If that were the case, the 'committee' wouldn't be singularly focused on Trump, but here were are and that's exactly what they're doing...
You obviously haven’t watched. The focus isn’t singular. Trump inevitably will be at the center of it as the leader of the band, but there’s much else, e.g., the thugs who threatened poll workers, Giuliani lying at hearings, election officials who resisted pressure, explanations of procedures followed to assure accurate vote counts.
Apart from that, someone who didn’t watch the hearing should have the grace to resist instructing what it was about.