P2 was, as it were, determined to go-around. The slightest hesitation on the part of P1 to say "Land" would result in a GA.
That sounds awfully scary with a transfer of command from the captain to the F/O at flare level and on instruments too. Did the F/O say "I have control" before he pushed open the throttles without telling the captain what he intended to do? Or did the captain just accept the F/O could do a better job of a GA than he? In those days were the F/O's low hour cadets?