Yes, he's trying to preserve the silent filibuster:
Senate Majority Leader Harry Reid (D-Nev.) doesn’t plan to advance a “talking filibuster” proposal envisioned by liberals who want sweeping changes to the stodgy Senate.Un-Dirtyword-Believable.
But he still may invoke what critics call the “nuclear option” to change Senate rules that would limit the use of the filibuster, force senators to hold the floor in certain situations and require those stalling legislation to deliver 41 votes, several people familiar with the matter said Thursday.
He is concerned that the Republicans will be even more obstructionist if he requires a talking filibuster.
Hello? Mitch McConnell, the Minority Leader, filibustered his own bill, and have you seen the graph? (Note that the 2012 numbers are incomplete)
Seriously. They cannot get any more obstructionist.
What the f%$# is he thinking?