Not easy to locate the proper switches on the overhead panel in the middle of such critical situation.
ADR is simple push button, IR is a rotary knob which has also to pulled before being turned so you'd have to be pretty hamfisted to get the wrong one.
They're just above the Captains head so it's a bit of a stretch for the FO. Who's going to be PF in the reversion from uncommanded Alpha Floor to ALTN Law..... CM1 I would imagine so not an ideal set up for carrying out the switching - but if you're wise to it and practice reaching across before hand it may relieve a bit of the drama.
A4