Isn't that Chattinglisa's boat??
Rig for the lulls?
Would guess 'same name, different boat'.
IIRC ChattingLills boats is a somewhat smallet, bilgekeel craft.
That's to do with comfort and keeping the boat upright more than not losing the rig. I don't believe that modern boats and rigs shouldn't ever fail just from pressure of wind. Rolling the boat might lose you the rig, but too much sail up damages sails and makes the boat lean too much with all the consequences of weather helm and poor sailing performance. It shouldn't stress the rig to the point of failure!