"followed by a bit of button pushing and confusion before FDs were recycled and we got George back into the game."
Which is why I suggest if unsure as to how to escape from G/S engaged ILS mode via "a bit of button pushing" followed by a slight climb/descent to leveloff, then NO AUTOs followed by deliberate reconstruction and engagement might be more desirable.
The risk is that a 73NG locked into the ILS mode and 2 A/Ps engaged below 2000' RA when it is "instructed" by pressing TOGA, then the power comes on and the pitch starts towards 15 nose-up. Doing this well above DA risks the sort of undesired higher energy state which is what we may be trying to avoid.
So pressing TOGA followed by another pitch mode can introduce the sort of confusion and loss of SA which afflicted the TCX crew, unless this sort of DISCONTINUED APPROACH manoeuvre has been practised and/or briefed and understood beforehand.