I can only speak for myself of course, but if I didn't notice it then I feel it wasn't needed. He wasn't officially Captain until the very end.
'Acting Captain's Log' just doesn't seem right. Though I could have lived with them swapping Nimoy's 'Final Frontier' for Pine doing it.
'If the Apocalypse starts, beep me!' - Buffy Summers
'The sky's the limit.....' Jean-Luc Picard, 'All Good Things'
courtesy of Saquist