Yes, this was a transient error.
It looks like at the time of the dump this extent had just been allocated to syslogs (so the extent record on the allocation page had object id 8) but the page headers hadn't yet been initialized with object id 8.
By the time you've looked at the page itself, the page has been used as a log page (page header now shows object id 8) and in fact the log has since been truncated off it as the page is currently deallocated.
-bret