Agreed on all three, but it's still less important than getting something done concretely IMO. They only need 4 senator defections to be filibuster proof, and 11 to be veto proof. It's highly doable.
The 3 agendas: investigations, performative legislation and bipartisan compromise legislation are going to be really hard to balance in the next 2 years. That's a lot of work in very little time. How well they do so will be how they're judged in 2 years time.