The page specifies that turrets "do benefit from cover", as well as the Version History stating the same, the later providing the only citation on the entire page. However, if you actually look at the Imgur mp4, it clearly shows and specifies in the image title AND URL that mini-turrets DO NOT benefit from cover.
This implies that the claim is false, as dispite the game showing a false <1% chance-to-hit, anyone who actually looks at the source would realize that, out of the 8-9 shots fired AT the turret (destroying the turret), a total of 0 shots actually missed the target.