"One unpleasant and unforeseen consequence has been to make the filibuster easy to invoke and painless to pursue. Once a rarely used tactic reserved for issues on which senators held passionate convictions, the filibuster has become the tool of the sore loser, dooming any measure that cannot command the 60 required votes."
First of all, great find. Kudos! Second, they are correct that the old-school all-nighter filibusters are a thing of the past. Third, they are obviously looking at this through the prism of a year after getting spanked. Fourth, since the new-school of filibustering now reigns the "easy to invoke and painless to pursue" line is also true. The main difference here is that they are bitching about an enumerated filibuster vs. an unenumerated and precedent-making beast.
It goes without saying that if one was to confront a liberal with this article namecalling would immediately follow.