This is wrong. Trending is based on an actual mathematical formula based on the number of views per hour on the last 48h. Then on top of that you have some filtering who tries to downgrade clickbaity contents. In the US you also have human filtering. Curators can remove a video or ask the Trending algorithm to rate a video before it's normally rated but they can't add a video to an arbitrary position or change the ranking.

Clickbait entertainment is probably over represented but that's also a kind of video who receives a lot of view at the same time which what "Trending" means.

Source: used to work next to the Trend team.