While it doesn't show you any thread context, for media tweets like the video one linked if you paste the URL into a site like https://savetwitter.net/en it will spit out the video file to watch as well as telling you the text of that tweet (although, testing it with that tweet on my phone just now I had to select the title and paste it elsewhere to see as the page truncated the visible amount to fit phone width).

He's being carried off. He's only smiling because of how ridiculous it makes the organisers look

He is rudely forced down a stair. That could have gone very wrong.