Could the reason for this be that he did not have the resources available to cause mischief? After all he had just fought a very resource/manpower intensive 8 year war.
Sometimes one just has to finish their thought processes to find the answers.
I don't think your thought process is quite complete.
Saddam was our de facto ally from 1980-1990. In 1993, he is trying to kill the president that humiliated him.
Was his military stronger in 1993 than 1989? No. There's more to it than you would allow.
Walt