I am not referring to the link you posted. But the letter I referred to by me. The letter dated March is in two part (Using Points and earning Points)refers to the NEW rates for my Ame Edge Card including the ongoing 0.5 earn rate for utilities (states effective 1 July).
It also states a redemption rate of 1;1 for EIGHT airlines and specifically mentions the 33% increase foe Asia Miles, Malaysian and Thai.
Changes are state to be effective immediately for using REWARD points...and there os no end date (Though Amex may of course choose to alter rates up or down in future).
As MR points are pooled for all 3 of my Amex cards all will gain the improved transfer rate.
The Using points part also announces
Etihad Airlines as an airline partner and webjet Hotels for accommodation.
So until they write to me agin I will expect 1:1...and I will file the letter they sent me.