Part of the problem would be that we have "tech" journalists writing this who have never been on either side of the transaction directly as a colocation customer, or an ISP/datacenter/hosting company, and drafted/reviewed contracts for such services. Nor have they ever gone and like, personally laid hands on a 2U rackmount server in a cabinet in a colo.
I'm not sure that I could reasonably expect a "journalist" to have those qualifications, but they could at least attempt to interview a neutral third party in the colo industry who can explain the distinction.