@snood,
I look at it all as the slow dripping of sand on the legal scales, every positive thing helps! With the weight of having this one witness - tRump's and McCarthy's profanity laced argument about bringing in the Army will go on the record and become history.
This will give cover for more R's to change their minds, especially McConnell. He cares about his place in history - written history. If he goes to 'Impeach' he will drag quit a few others. According to the current 'count', there are 8 R's for guilty! Who knows?
Yes, it is a lot of hope, hope; wish, wish - but, it's all I got!