The existence of this trip & prosecutors' questions about them are actually in the materials Nauta released.
But this adds far more details, incl on others being told this was to check renovations and changes in flight manifests.
Keep in mind that prosecutors presumably would most like Nauta and De Oliveira to flip on Trump. There are matters that they cannot fully understand w/o Nauta's truthful testimony, including why he went back and what happened to still-missing docs
Npars01