Maybe the Cuban president should ensure vital infrastructure can be maintained and holds an inventory of spares?

Something that'd be significantly easier to do if it weren't for the US's continued immoral blockade and sanctions? Cuba does not have the resources to maintain the plant purely on their own, and they can't hit a magic button that will suddenly let them find an abundance of spare tools and equipment to repair their infrastructure in a disaster scenario without wider access to international trade.

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This is really what brings the meme together, it's just so... chef's kiss

Any idea why Tesla went against that to a shatter proof glass?

Because Elon Musk is a manchild who thought it was cool and forced his engineers to entertain his idea? The entire design of the Cybertruck just screams "someone high up had a shitty idea and told engineering they had a month to figure out how to make it real without any regard for rules or regulations".