It was probably a "finger" off the main lightning bolt that hit the ground. In that case, it fried the radio "it melted the antenna", and just took out the PCM. We can keep hoping.
Yes most likely as a full direct strike would have done serious damage and no fusible link nothing is going to stop that kind of current flow. It will easily arc /jump feet let alone less than a inch etc.
This is more the typical end result of a direct hit ( also why the insurance may have been stating the points of totaling the vehicle of this is what they were expecting):
As you can see a wee bit more than a melted antenna and blown PCM and radio