Only for troubleshooting. If you have a device with normal behavior then it is not needed.
Suggestion → if there is an error internal at scan time - automatically show the scan result. Leave it closed if you have no error condition.
It depends 
I personally would leave it there at the top. It would be strange to have such information at the bottom → bottom = less important
I have one other strange behavior from time to time. You press the “Fix all” and it looks like the system does something but everything stays the same. After a second press of “Fix all” the system works and does the “Fix all” really.