Why was the video of Xi Jinping and Putin's immortality conversation deleted?

According to reports, President Xi Jinping and President Putin were caught talking about immortality and organ transplants at the Victory Day event.

The two people made headlines for exchanging remarks like, "You can live to be 150," but the footage was later deleted at the request of Chinese state-run media.

There is also an analysis that the fact that they are both 72 years old links their desire for power and interest in longevity, but CCTV raised the issue, saying that it is a distortion.
Is this a simple coincidence, or is it intentionally obscured? What do you think? I'm curious to hear your thoughts~~