> In English, it is typical to give an “agentive” description, such as “Sofia broke the glass,” even if it was an accident. But in Spanish, the particle se is typically used, and this changes the focus of the sentence; the description of the same event in Spanish would often be formed as: “The glass broke itself.”

Meh. It depends. I don't think I would say "Se rompio el vaso" ("The glass broke itself") if I saw that Sofia broke it (I would say instead "Sofia rompio el vaso", just like in English). But if I don't know who broke the glass, then yeah I probably would say "Se rompio el vaso" (or just "The glass is broken", "El vaso está roto").

Edit: But, if I don't really want to point at Sofia while still saying that the glass is now broken, then I may use the "se" to lighten the matter. But I guess in English one can do the same thing ("Things get broken, people. Nothing to see here")