I work as a nurse at TV.
I'm sorry this happened to you but I can assure you that a TIA is not the same as a 'stroke' in the major sense that it does not cause brain tissue to die.
Transient ischemic attack - PubMed Health
'Clot busters drugs' (i.e. tPA) are not just given randomly. Their use is under controlled conditions and almost always require a CT and evidence of a true stoke caused by blockage. If the stroke is caused by a bleed then the random use of tPA can be fatal.
Thrombolytic therapy: MedlinePlus Medical Encyclopedia
A CT within 1 hour is the standard of care. If there were signs/symptoms of a stroke your husband would have been given a CT and care would have been followed from there.