Please cite a reference for this statement. My understanding was that Grassley offered to secure a statement from Ford in person or by phone (and remember, the term statement has a very specific legal context here). Ford's lawyers refused and presented a list of ludicrous demands.
Kavanaugh has been the one demanding to testify in person, in public, at any time.
Grassley hasn't conceded anything of substance in this charade. This would have been a disaster if Grassley had played hardball and scheduled a vote. These allegations aren't being made the day they're presented in the media. They're hatched weeks in advance, for the specific purpose of releasing them the night before a scheduled vote.
How many Republicans on that committee would cast a vote in favor of Kavanaugh if the most recent allegations had been posted the night before?
Grassley is agreeing to delays because he wants it withdrawn. Once the accusations made it go wobbly with the three rinos, he saw withdrawal as the easiest way out.