go and read and build some knowledge .
wishbone is just there to constrain the wheel into limits of movement -no damping ,no springing Action ...more or less .
The blade type Suspension pickups are there for:
reducing parts Count (less parts ,less potential for failure,less weight)
this is of course a very simplified view of reality -as soon as you incline wishbones in longitudinal driection not all spring Forces go through the pull or pushrod anymore -but thats the next can of Worms to swallow... so we leave this aside for the moment..
the bulkheads are not visible in the Pictures really .
Here is a older Picture of an early stage of monocoque construction with bulkheads already in place:
The bulkheads are positioned strategically to stiffen Areas were loads are fed into the Chassis .Carbon fibre is very mediocre at taking Point loads so you´d better spread the Forces very cleverly into the structure to avoid premature cracks and local stiffness issues ....well.. this holds true for every material..