I don't see the downside to him seeming to bend over backwards (as far as a man his age can do) until 10:00 AM on Monday. Ford can still teleconference in at any time before 10:00 Monday with minimal time to set things up. I suspect she is uncoachable as a witness and her movers don't want her to face a good lawyer's questioning under oath.
Grassley can't change the dates of the vote without a week's notice unless the minority agrees, and not only haven't they agreed, they probably aren't even in town now.
Grassley has scheduled the committee vote on Kavanagh for 10:00 AM Monday.