What's with the Ware Opening: Cologne Gambit?

I am currently compiling every single opening into one large spreadsheet, and I noticed something interesting - the cologne gambit.

It's only been played twice according to the lichess database that has 6,834,196,808 games. Winning the megaball lottery has a 0.000000344266863% chance of happening. Getting that position has an even lower chance - 0.0000000292645947% chance, which means that getting this opening is less likely than winning the lottery.. The opening isn't that bad, it only loses a pawn, compared to the halloween gambit which loses a knight and has been played ~2,000,000 times. It isn't that it's long - in fact, it's only 3 moves. It's not that the eval is bad, the cologne gambit says black is losing by 90 decapawns (one tenth of a pawn) compared to the halloween gambits 22 decapawns. Here is the opening:

does anyone have any ideas why this is so rare? (and more importantly, how it got in the ECO database even with it's rareness?

Bump