> do have minimal strain reliefs That's the redesigned magsafe2 cable with longer and slightly more flexible strain relief. The original magsafe power adapter

> do have minimal strain reliefs That's the redesigned magsafe2 cable with longer and slightly more flexible strain relief. The original magsafe power adapters had almost nothing, and it was a much harder plastic. While material choice and thinness may be an issue, it's exacerbated by the strain relief being insufficient.