He spoke of hurricane proof glass. All glass is hurricane proof in small size.
Wind loads are expressed in pounds per square foot. I would expect the design load to be perhaps 120 psf
He basically dredged up a fact he didn’t comprehend and then tried to express it so the mindless reader could understand
There was no point load of 800 pounds to be resisted and 800 pounds is not a meaningful measure of glass strength.
The window approximately 4 feet wide by 8 feet high or 32 square feet x 120 psf would transfer 3280 pounds of force to the framing. The glass can easily absorb this load over the area with a deflection of less than 3/4 inch.
The curtainwall is designed to maintain a mullion deflection of less thaan about 3/4 inch. The mullions are the vertical aluminum framing containing the glass. Under high wind looad, they deflect or bow inward.
I observed the broken glass and couldn’t tell what broke it out. I would suspect repeated impact with a rifle butt. I couldn’t tell if the glass was tempered but don’t think it was because large sections remained in the curtainwall framing. The glass was ordinary annealed float glass with a reflective coating.
I overstated the load.
The windload would have been closer to 60 psf so the transferred load would be more like 1600 pounds.
The 120 number would have been windspeed on miles per hour
After posting my old brain kicked in