Hi DW,
Am I right in thinking that procedure of going back to the idle detent and thence forward to climb or TOGA only really applied to situations where A/THR is active?
If you select TOGA, you should get TOGA power irrespective of whether the A/T is engaged or not.
It appears to me, that had he maintained the TLs in the TOGA position, then he would have had TOGA thrust by time 335 (engines accelerate very quickly at high power settings).