I'm really sorry to ask this, all you AB folk, but as an 'old-fashioned' Boeing driver, how can you 'forget' to close the throttles on landing - or do you have no control over the engine speeds?
The TLs tend to sit in the "CLB detent" - this is you "setting" the max thrust the ATHR can use. Once nearing/in the flare you bring them back to idle - and if you don't it shouts "Retard" at you (and the front few Pax rows
) ... to remind you.
The "Retard" is to stop you forgetting... and the unintended consequences that
may be a factor here. It further seems that once an engine goes into Rev, maybe the "Retard" stops?