In the machines view, the colums are ambiguous.
"Last backup date" is actually last *successful* backup date - not the last *attempt* to back up.
Meanwhile, "last backup status" is the status of the last *attempt* to back up, which may or may not match the "last backup date" (it only matches if successful).
Thirdly, the backup job name isn't mentioned - too bad if you run two or more backup jobs and say, the first fails and the second completes -- the failed job's status is not visible in this case. Ad the very least, add the backup job name!!