It's the same as fat fingering a website in your browser. Are you saying I should go to jail if I type the wrong website, it loads, and it turns out that site was supposed to be "private"? My browser downloaded the home page and all the files on it.
What if I click the wrong wifi network and use it all day without noticing? Should I get charged for "unauthorized access"?
There needs to be a reasonable standard for security above "so insecure you could do this by accident" to send people to jail. Whoever set up the server that shitty should be charged with negligence.