It was called The Darkness years before. To me this looks like a proof.
At 15:44 MyNameisByf says it’s called The Darkness as well as Myelin Games in his video about the fifth race. File names are not the same as the name of the concept art itself.
If you want to go into sematics, then the Artstation link says Destiny: Pyramid Ships, which is closer to what Destinypedia says than the YouTubers. Due to its release date, 2015, which was also the same year TTK dropped, Destinypedia naturally assumed it was a concept art for a Taken fleet or even a Hive fleet.
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