I don't see how this addresses the criticisms I made in my previous post. The fact that "Breaks" are designed to be debuffs and not buffs still remains, regardless of what you're proposing.
Also, you were specifically giving those NMs as examples of NMs where the "fast kill" mentality doesn't work. The problem with debuffs/buffs is that they have a finite duration, which is best taken advantage of if you're continuously meleeing a monster. Breaks are bad on monsters where the "fast kill" mentality doesn't apply because you waste time not taking advantage of the debuffs you sacrificed TP for.
Breaks (if they landed more often) would be most useful on monsters where the fight is ~3 minutes (the duration of an unresisted break iirc) and where you're continuously meleeing. Tier 2 NMs other than Glavoid or the Uragnite, for instance.