Rendmaw, Creaking Nest bird tokens are not remaining goaded

Card text is as follows:

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Menace, reach

When Rendmaw enters and whenever you play a card with two or more card types, each player creates a tapped 2/2 black Bird creature token with flying. The tokens are goaded for the rest of the game.
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Currently: Bird tokens created by Rendmaw lose their goad effect if the Rendmaw which created them is removed from the board. This is incorrect behaviour as these tokens are supposed to be goaded for the rest of the game.

Expected: Bird tokens remain goaded even when Rendmaw is removed.