Bogus! How could this be lost by 'repetition'?

Position after 52... Kd7, 57... Kd7, 63... Kd7 pretty much look the same. Threefold repetition refers to the same position 3 times, not how you reached that position.

EDIT: Damn, ninjapost

Three fold repetiotion is when a position has been reached three times.

It doesn't have to be in a row? 

Nope, it doesn't matter as long the position has been reached three times.

Rule 9.2

The game is drawn, upon a correct claim by a player having the move, when the same position for at least the third time (not necessarily by a repetition of moves):

1. is about to appear, if he first writes his move, which cannot be changed, on his scoresheet and declares to the arbiter his intention to make this move, or
2. has just appeared, and the player claiming the draw has the move.

Positions areconsidered the same if and only if the same player has the move, pieces of the same kind and colour occupy the same squares and the possible moves of all the pieces of both players are the same. Thus positions are not the same if:

1. at the start of the sequence a pawn could have been captured en passant.
2. a king or rook had castling rights, but forfeited these after moving. The castling rights are lost only after the king or rook is moved.

https://www.fide.com/fide/handbook.html?id=171&view=article

EDIT: Again a ninjapost 

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