I kind of hate when a meme is built from something I already know about because it’s impossible to appreciate a mid-tier gag like this when I know the point of the original sketch.
John Cleese, here overlaid with Elon Musk’s head, is the protagonist in this sketch. He’s the one who’s actually being honest about what’s going on. Michael Palin, the vendor on the left, is lying about whether or not the bird he sold is dead. That’s the joke. That’s the point of the sketch. The humor isn’t that John Cleese killed the bird, it’s that Michael Palin sold him a dead bird.
This meme would make sense if Musk bought an already dead platform, but that’s not what happened. Twitter was at its peak when he took the helm. He’s actually the one that killed it.