I'm not a journalist, but I follow a few news accounts and often want to QT their posts I agree with so I can add my own positive comments and boost at the same time.
Of course, they (and I) could move to an instance that's based on a service that allows quote-posting, such as Misskey. I suspect many people who started using a Mastodon instance are either unaware of that option or unwilling to move, or both.