I see that but I think the problem is that some generalists don't want to specialize in anything. They hired a VP of Marketing to do the marketing yet the generalist wants to continue to help do the marketing along with a bunch of other roles they hired more specialized people for.
As mentioned above, I wrote the article. The most perplexing thing was that they hadn't yet hired specialists to fill those roles. Presumably, the new VP of Marketing (she started after I was let go) would have filled those specializations which seems like replacing a bandaid with a more robust bandage.
I was perfectly happy to specialize - in fact, I had spent the last few months digging deep in landing page optimization and email marketing specifically. I know there's more to the story. I just haven't figured out what it is yet.