The "take all material" option of the project archiver is not at all suitable for projects with actual subclips with original master source present.
Please note that this is only about actual subclips which were created by going from source clip to the monitor and back to the media bin as a subclip. Do not confuse this with trimming clips on the timeline; totally different beast.
The ENTIRE ORIGINAL SOURCE for every subclip is copied -- for every sbuclip that is derived from it.
Thus is there is 10 GB clip that has had 50 true subclips made from it nad placed in the media bin that 10 GB original source will be copied 50 times, (1) taking many hours and (2) taking 500 GB of disk space.