Discrepancy between card statistics and actual available trades

I have noticed this for a while and wanted to bring it to the attention of the userbase to see if anyone else is experiencing it.

When you pull up a card, there is a statistics section on the right that shows how many tradelists, wishlists and decks the card is in.

However, this never matches the actual available cards for trade.  Take Yarok, the Desecrated for example.  If you search for him it shows there are currently 53 available on tradelists.

But if you click the link next to 53 tradelists, "Find users trading it away", the results are much different.

Selecting the widest value for each filter - tradescore greater than 0, successful trade percentage greater than 50%, by mail worldwide, deselecting a specific version, etc. only gives you 8 results that have it for trade.

Where are the other 45 Yarok's?