That's not what I'm hearing. The Smart Rock is still being used and it's propulsion system is highly advanced. The thing is faster than hell. Actually, the US Army has been doing a great deal of work in this area. A few contacts I had are still around. The system you say they are building is a backward step iin so far as the propulsion is concerned.
You have much more information than I do on the guidance system. I try to keep up with all of it but it's difficult. If the guidance works as you say, Larry, there shouldn't be any problems. The damned thing should be quick enough and accurate enough to work.

Of course the USAF still goes forward with the flying laser weapon for theatre defence.