In the original article "A successful Git branching model" I don't see a single mention telling people they should call this specific model Gitflow.
For me the word gitflow has the useful meaning of a git branching model, am I in the minority ? Using it as a noun for a specific model seems like a waste of the word.
In regards to the article, sure this gitflow is one of the most shared images on the subject. However I recommend that every team use whatever gitflow makes the most sense for them and their project. I was not aware that our industry had a problem with teams cargo culting that specific git workflow.