Not at all. As has been pointed out from the very first thread on this, they could have offered cash money for volunteers to take the next flight and increased the increments until they had volunteers. Back in the eighties when I flew a lot that was a standard practice.
I read the bidding stopped at a $800 voucher. Instead of offering more to the passengers, they sent in the goon squad to remove a computer pick. It was a Sunday flight on a small regional jet. I am guessing most people on that flight had to get to work the next day, so there were a lack of takers when the bidding stopped at $800. I read the next flight wasn’t until the next afternoon.