How does Privacy Badger prevent making the user more fingerprintable? #809

From what I see, Privacy Badger seems to decide what sites to block or allow based on browsing behaviour, which would seem to generate an unique list of sites to block based on what sites the user visits.

Couldn't malicious sites simply use JavaScript to load data from third-party sites and check if the requests are blocked or not to fingerprint the user?

Does Privacy Badger have any mechanisms to prevent creating an additional metric that can be used to fingerprint, thus making the browser more fingerprintable?