I suspect that waste produced by broken glasses is so minuscule compared to the overall glass production/waste that this is largely irrelevant.
Edit: Apparently glass cookware and drinking glasses are often not recyclable. This seems like a more important aspect to improve than durability even if, again, still overall a small improvement compared to overall glass industry.
Edit: Apparently glass cookware and drinking glasses are often not recyclable. This seems like a more important aspect to improve than durability even if, again, still overall a small improvement compared to overall glass industry.