Would the TL position inhibit the spoilers, autobrakes and perhaps even the "Retard" announcement?
Looking at page 13 of the document linked to earlier, it is very clear from the logic diagram that having one TL not at or near idle will totally inhibit spoiler extension, even if armed amd mlg compressed.
The same condition will also inhibit partial spoiler extension, designed to be triggered when only one mlg is compressed
From reading the notes, it would appear that TL position has to be <15 degrees and the aircraft < 10 ft altitude to count as at or near idle.
I have no idea where 15 degrees is in relation to the "normal" setting.
Elsewhere, on page 3 of 1.32.30 there is a statement that says autobrake function will not work if ground spoilers not extended, therefore with TL not at idle there is no autobrake either