Grassley isn’t going to arbitrarily change the way the Senate committee process works.
Republicans got to see the papers of Kagan and Sotomayor in their confirmations.
Democrats will be allowed to see the papers of Kavanaugh.
I hear what you are saying, but you are talking about the Republicans that rolled over, said elections have consequences, and consented to the most unqualified SCJ confirmations in history?
Now, you've changed your argument.
Your first argument was that Obama holdovers would "drag their feet on document production".
Democrats and Deep State Holders dragging their feet is not part of the normal Senate committee confirmation process. The normal preparation time to prepare for the confirmation process by both sides is about a month.
Grassley limiting the preparation time to one month wouldn't be an example of a chairman "arbitrarily changing the way the Senate committee process works".
The Democrats and Rosenstein don't have the power to "drag their feet" and delay a confirmation hearing.
Repeating what I said once again, it is up to the majority chairman, Senator Grassley, to determine when the committee votes and I know that after that, it only requires 51 votes on the floor to end debate.