One way they do it is by hiring shills like The Points Guy. Half of their posts in the middle of the pandemic were about how wonderful cruising is.
I understand the tendencies of the various cruise blogs to put a happy face on cruising. These blogs are reticent to speculate about anything like a potential cruise line bankruptcy. They will cover it - after the fact.
Every once in a while, I will post an article from a non- cruise source, to bring in a little reality.
The press will watch this ship like a hawk, hoping for another outbreak. -Tom