You bet your life!
I dont think I would be overly concerned with sudden catostophic top tube failure if this were just the result of a handebar strike dent on the TT. Was there a frontal impact that wrinkled the downtube and pushed bottom of the HT back or is the headtube now twisted out of plane with reference to the seattube? (I dont think use of the HTS-1 would do much for out-of-plane twist).