It amazes me that Business Insider does not have one hour of an interns time to confirm sensational stories like this. More likely everyone in the publishing chain was deathly afraid of questioning any part of the narrative of obedience to medical authority that their main stream editors require.
Business Insider is part of Axel Springer AG, a German publisher best known for their flag ship BILD. They've always played loose with sources and facts, and have always favored attention/clicks/sales over truth.
BI isn't as one the nose as their tabloids, but I haven't had the impression that they operate by different principles either.