this is as intended, as long as you are not too particular about (not using) remoteproc (eww).
all source code included, including the warts, but not the history.
all parts of the project can be rebuilt from source with matching cksums on executables.
image would PROBABLY need at least a 16GB microSD card if using etcher to create it due to this issue: eMMC to bootable SD
good luck
gomer