It would 'make perfect sense' if Kate remembered that conversation she claims to have had with Madeleine because she was 'under scrutiny' in police and other interviews,, and she was going through all events of the holiday in her mind and trying to make some kind of sense of them
That's not what happened though
She sat down at the table and almost immediately related that conversation with her friends
While she was doing so, according to her version of events, Madeleine was safely tucked up in bed
... No duress ... no stress ... no scrutiny ... no reason to be going through the event in her mind
She brought up the subject voluntarily and without prompting ... the subject she claims would never have entered her head at all if Madeleine had not been 'abducted'
Yes I have just been re-reading things and I seem to have got this mixed up.
But even though she mentioned this conversation at the table, she has brought it up several times publicly as a hint that there could have been someone in the apartment prior to 3rd (as mentioned earlier in this thread).
I understand the importance of going over every detail and placing things correctly in the timeline. Our understanding of the situation can change profoundly according to the alteration of one tiny detail.
I think that it is worth remembering in general terms, however, that much of what Kate McCann has written and said is a result of her reviewing things in her mind. Her words written and spoken are highly discursive in style.
In my opinion this exercise - if not her comments at the table - can be explained quite easily by saying that she was looking for things which may have helped her understand what happened to Madeleine. There is nothing odd about this at all, and nothing in this process to suggest lies.