That boat is different to a beach cat...
Maybe the rig is supposed to carry a genua without the main, then the shroud has to take these loads as well. Since the shroud foot point is close to the mast foot (in longitudinal direction) the loading can be high.
However without knowing the "design" wind speed for sailing with a headsail alone, the size of this sail and some other geometric parameterss, I can't make a guess.

Cheers,

Klaus