In my opinion the 10th hole is a great spot for a momentum changing opportunity. Whether in match or medal the 10th hole is generally thought of as 'starting home' and almost provides a rebirth to someone struggling or an opportunity to really lock in a good round to someone already going well.
This is the best reasoning for it that I've ever heard...but is Golf really 'a game of two halves'? At the last Rugby World cup the English team were given fresh jerseys to wear in the second half because they were to treat it as a new game irrespective of what had gone before. Isn’t any time a good time to change momentum (always assuming you're the one who needs to)? I
The Celtic Manor features this kind of hole later in the round and The K Club switches it’s routing for tournaments, so something like the last 5 holes all dice with water. The tension builds and this kind of hole offers a chance to turn things around. You only have to think of the Belfry 18th.
In the Ryder cups ‘most’ players have played it as a two shotter, does this offer proof that it’s not at its optimal position in the round? i.e. at that stage in the round the risk always outweighs the potential reward.
In the last B&H strokeplay at the Belfry, Casey hit the green 4 days in a row with his 2 iron. He was a player very much in the ascendancy then.