I havent read the Taipei report before now.One thing that stands out is that spoiler activation was called even though it hadnt actually occurred.I understand that deployment is shown by green arrows on the WHEEL ECAM page.Thats one sensory channel;optical.
On a Boeing,the deployment of the spoilers is transmitted to the pilot via 3 sensory channels;sight,sound,touch.And the pilot needs only peripheral vision to do this,enabling heads-up at the critical moment.They know pilots are stupid so they put this goddam big lever that looks like a flap and have it move back and forth.
The sequence in which you deploy retardation devices is absolutely critical when on a short wet runway.SPOILER(1),then BRAKES(2) then REV(3).Never go for (2) or (3) before (1) is successful.And that is why the way in which spoiler deployment is transmitted to the pilot is so crucial.