Quite the opposite. Use drives from as many different manufacturers as you can, especially when buying them at the same time. You want to avoid similar lifecycles and similar potential fabrication defects as much as possible, because those things increase the likelihood that they will fall close to each other - particularly with the stress of rebuilding the first one that failed.

Has someone asked what there IS to defend if not people’s lives?

It undeniably does, but what would be interesting is a comparison of how much water is needed per liter of milk and various substitutes.