Is the use of 地 in the following document correct (some specific samples included below)? I feel like there are many cases where 的 should have been used, but 地 is used instead. The number of such cases has me concerned that I am missing or misunderstanding something important about the language. If that usage is correct, could you please help me understand why?
Otherwise, would this just be a stylistic choice on the part of the author for some effect? Is this usage common, e.g. in some genres of literature, in a certain regional variant, etc?
Some samples from that document: