Saying that Barr's obvious bias should make people suspicious of the content of the summary, when it outlines the facts very clearly and quotes the special counsel on the key elements of it, is a huge statement.
For Barr to withhold critical information with the world watching would be ludicrous, and there's nothing he's done in his short time as AG that remotely justifies such scepticism. When you add in how little scepticism was applied to the more damaging speculation about the report just weeks prior to this, it completely undermines the legitimacy of any previous concerns about Republicans refusing to accept the results of the report.
The implication was that this scepticism of the end outcome would be completely baseless, pure partisan politics, and an indication of the ridiculous position the GOP now find themselves in. Yet now the pendulum has swung the other way, the democrats are going in the direction which just weeks ago they abhorred. Some went as far as to describe it as "un-American". Trust the process and the justice system.
It just underlines that everything here is partisan first, legitimate analysis of the facts comes second. I'm not sure why anyone thinks that is in their best interests. If the goal is to have democrats' decisions and actions be taken seriously, and viewed as being in the best interests of the country, they need to take themselves seriously first.
Also,
@calodo2003's overarching point in this thread echoes many others, which is to be sceptical of the whole thing. Why did it end so soon? Why was the report produced so slowly (and now, so quickly)? What about all those unsealed indictments? Something seems fishy here.
That attitude is entirely in keeping with how they predicted "the other side" would act. Do you disagree?