[greenshackle2]

You say "nah", but what you are describing is reversing a transaction, I don't see how that is disagreement.

From the POV of the recipient, when the split branch becomes the "non-true" branch, it looks like they got the money but then it disappeared.

[pat2man]

If you are considering the recipient a human interpreting the results, then this is a failure of their wallet UI. The block chain is a tree not a log. The views that show it as a log are just showing you the statistically most likely outcome. If you look at the raw data you see all possibilities.