New re the Chinese Space Station

I found this YT video clip re this "Heavenly Palace". The clip is only just over 2 minutes long. I realise that any news source will go all out on the hyperbole..... BUT this is seriously alarming. Even if it just hits the sea - the Hydrozine content could poison the waters. Causing substantial damage. And it seems they can't do much about it. Note the dates they now suggest this thing will hit earth.