I was looking at the different 2017 sets and appears to be cards from this "set" listed under the major release as one whole set and some cards are listed again as individual teams under team issues. For those collecting teams or players, thinking this might throw off total possible card counts.
I guess I'm not sure which is the more accurate one. The cards are numbered sequentially between all the teams to form a full "set", but when purchased I think they could only be purchased by specific team as a "set".
Based on how the others are listed on the site, maybe this would be listed as all teams individually under team issues....