Yup that is backwards. The mini USB should be on the side labelled RX (it is on mine) and that end goes to the receiver, the other end goes to the antenna. See my post from April 2018 - following reseller feedback they rotated the label 180 degrees and changed the text from ANT/OUT to RX/ANT to make it clearer and line up the arrows with the SMAs.
This has caught some users out because they install the filter with the label the same way up as a photo online, but the photo was of the older label so they install it the wrong way around, and the word OUT was ambiguous in the old photo. However in your case it appears whoever loaded/installed the labels on that batch got equally mixed up!