Rule XXI has some legitimate uses, typically in Declaration of War contexts where time is of the essence.
It's not a bad rule. It's being abused today. See also the cloture rule - it has a good purpose.
Trying to "codify" everything is the liberal way - better to have fewer rules and men and women of good sense and honor be bound to them as they (the rules) are intended to function - which is to provide for SMOOTH government function, not "gotcha politics."
Abuse is abuse. If the Democrats insist on continuing this abuse day after day, I see no reason to enact the rule change until this congress is completed.