If the DEMs have applied the rules in a way that was never intended (i.e., invoking cloture rule for judicial nominations), then what would be so bad about closing the loophole?
Is it wrong for a minority of Senators to block a judicial appointment regarded as appropriate by the majority? If your answer is "it's permitted by the rules," then don't complain about the DEM use of the rule.
My opinion is that the rule is wrong and should be changed.