Actually the eye walls do disintigrate and reform in the hurricanes life. There have been several hurricanes recently that almost completely broke apart and reformed. I believe Ivan was one of them.
If the eyewall can be disrupted, the entire storm will be effected. Picture this: We deploy a bomb that will release a column of propellants as it falls. At the bottom of that column, detonate the main explosive. Blast will be virtually simultaneous along the length of the column. The calm air in the eye will be ideal for a uniform distribution. Will it happen like that? Who knows. If it does, what will be the effect. Who knows. Should we try it---absolutely. And soon.