They chose a picture that showed her looking like a drug addict. The one that was all over social media where she was wearing two different shoes and she was getting dragged to hell and back. Not only that but they misspelled her name. How is that not disrespectful?
Media outlets often have obituaries and associated articles pre-written months and years in advance of a celebrity's death, allowing them to fill in the details and break the story as quickly as possible, beating other outlets to the punch. Whoever wrote the article likely googled Bobbi Kristina and picked whatever photos came up. The picture they posted is on the 1st page results for Google Images "Bobbi Kristina" search, so...there you go.