This reference in The Asean Post is the only one that refers to a specific check-in time at The Dusun Resort. 07:00 seems very early. Wasn’t it 7pm?
The same article also refers to Nora going to sleep upstairs “presumably in her own room”. Quite a cavalier approach to important facts.
Some of the earliest flights to Kuala Lumpur from London on a Saturday arrive at 14:15.
The earliest arrival times for flights from both London and Sydney into Kuala Lampur were at 07:15 and 05:00, 06:00 and 08:00 respectively. The first of these times calls into question the simultaneous check-in at 07:00 at The Dusun Resort. If the family did arrive early in the morning on Saturday, what did they do for the rest of that first day? Did they take any photos?
It will be good to get clarity on these questions as well.