No it is not outrageous.
It could be someone who is interested in finding logs open to bots that has created a page of links pointing to the domains that they are interested in.
If the bot finds those links to that URL and you haven't disallowed it in robots.txt the bot will try and fetch it.
So simply, add /logs and /access_log to robots.txt and you won't get any more hits on those.
In fact I know one botnet which has actually compromised the logs folder on several sites, as it is trying server up compromised files via query string injection methods.
So I wouldn't be surprised if they were them.