John brought up two points I liked - no one is saying they won't impeach. There's still some groundwork - get the taxes, compel people to testify - as well as the ongoing investigations that may make for a stronger case. And - Pelosi isn't an idiot. There's no reason to hold a vote this year at all. You do it in 2020 and it dominates the campaign and puts Trump constantly on the defensive. You do it now, and no one will remember by the end of the year, let alone in 2020.
Second, from the massively stupid lady, there's tons of people like that. Holding more hearings and getting that to dominate public discussion is just as important. The only reason the massively stupid lady even knew is because a republican politician told her.