Is that actually a legit account? There's zero reference to Rumble on the official Twitter or the website, which still links to YouTube. Older videos on the Rumble channel seem to have been backdated to match the YouTube videos as they have a singular view or even no views[0] . Or does Rumble let you change the upload date after a video has been posted?
[0] https://i.imgur.com/f08bDhK.png