In this situation, the point is that all those pointed tips of the leaves of this awkwardly floppy century plant, Agave americana, are extremely sharp, extremely rigid and EXTREMELY dangerous. Those shorter teeth on the margins of the leaves are just as sharp and rigid, and are curved inward to maximize injury to anyone trying to get away from an initial jab. With tips that impale, and marginal teeth that slash, this is one very hateful perennial!
Another point is that this big and awkwardly obtrusive century plant is on a patio at a Mexican restaurant. Yes, it is in a public place where people get dangerously close to it. On Friday and Saturday nights, this restaurant can get quite crowded. Some within such crowds are inebriated, so are more likely to stumble about and bump into things that are best avoided. Those concrete slabs to the left are benches where people are often seated.
The third point is that the only remedy for this ridiculously bad situation is to remove the century plant. Chopping the leaves like those that were over the bench on the left only removes a few tips and teeth, but does not make the rest of the foliage significantly safer. Nor does folding the leaves inward, like those that are next to those that were chopped. Such abuse only makes the whole mess uglier. Now it is both dangerous AND ugly.
Now, who thought that putting the most dangerous of all perennials available into this public situation was a good idea?! (Cacti with inward curving spines and other plants that are more dangerous are not even available in nurseries.) Century plants are dangerously nasty even when small and young, so even someone who knows nothing about landscape design should have known better than this!