Maybe you think the house is a kind of court? They don't meet that standard, or even try to; check out the Kavanaugh "trial".
What did they know that wasn't already in the public eye? Banks were making their projects just like everyone else and nobody KNEW what was going to happen. Insider trading has a real legal definition, there was nothing in that briefing that could constitute insider trading because there was no information revealed there, just speculation that was already captured by public sources.
So, non-public information regarding what the government response might be, including perhaps advising states to issue shelter-in-place orders that would tank the economy?
> there was nothing in that briefing that could constitute insider trading because there was no information revealed there
You have a transcript?