Wyrmrest Purifier interactions with Albatross

As some of u guys know, Solem played wild version of albatross+weasel which combo with Wyrmrest Purifier after copy opponent’s bird-infested deck with Archbishop Benedict.

But, when then combo done, he still drew out albatrosses. Wyrmrest Purifier bugged? this means token not considered neutral cards?
Then its not really tech to all token shuffling shenaningans such as bombs, plagues etc? Almost tempted to craft the deck though

The game is a little strange on neutral cards.
I cant even filter the search options to look for only neutral cards in the game.

Cards have only 5 rarity’s

  1. Free ( without a colour gem )

  2. Common ( white )

  3. Rare ( blue )

  4. Epic ( purple )

  5. Legendary ( orange )

So what are considered neutral cards ?

Albatross issue has been reported and is a Known issue:

Neutral are non-class-specific cards.
Classes: Druid, Hunter, …, Death Knight.