I agree. A cruise missile strike from both a bomber or a submarine would be good. But I chose a submarine because it could be at the launch site in a quick manner. A bomber, lets say from Whiteman AFB, would take longer.
Again I still support our men and women Air Missileers who are somewhere in under the farmland of the United States
Simply put, cruise missles are too slow to offer comparable capability. They are weapons of chance (in that they are only an option if chance happens to place them within reasonable fly-time distance to the target). In many situations, their low speed and/or limited range rules them out.
Regarding Russian reaction to the launch of an ICBM - As implied in the article, there is a general rule of thumb within the early warning community: One missle in flight warrants further investigation - Only the presence of many missiles is cause for serious posterior-pucker. By its very nature, this system falls into the single-missle category.