The spirit sense technique is poorer than the Power Assessment technique in its ability to collect information. It can be said to be a pale imitation.
The Power Assessment technique would have caused his spiritual energy to wash over the man and collect information about his state of existence the same way they collected information about their own existence.
So he will know about the man's physical and spiritual condition. This information will be accurate too.
The caveat is that the power assessment technique can be sensed by the target. After all, it is their body that is being scanned. Only godclads with poor perception won't notice the usage of the ability.
But travelers have a very high perception. They need it to sense their environment when they are running and to sense danger so that they can start running. before the danger arrives.
