Jesus was addressing the lack of knowledge in the disciples regarding the resurrected body which inherently has both Spirit and supernatural physical properties.
The same lack of knowledge that you demonstrate now.
In your zeal to point out the fact that Jesus was only flesh & bone after He rose, you neglect to mention that
He states this only moments after appearing to them as they were hiding for fear in a room with a closed door:
John 20:19
¶
"Then the same day at evening, being the first
day of the week,
when the doors were shut where the disciples were assembled for fear of the Jews,
came Jesus and stood in the midst, and saith unto them, Peace
be unto you."
How does a "flesh & Bone" Jesus who has no spiritual capabilities suddenly appear & disappear inside a locked room to the disciples ?
In light of His materializing out of thin air inside a closed room just before He explains that He is not just a spirit , it is stunning to me that you really don't grasp what Jesus was unpacking here for the disciples.