Which part of the video is wrong? The fact is that it failed to reach planned velocity. This is public record. If it did not reach planned velocity then it did not reach the non-circualized suborbit that they intended. They were not "just a circulization away from orbit."
The CSS channel was created when Musk and Shotwell were making bonkers claims about their Mars plans, as well as other crazy bullshit like the suborbital rocket airline stuff. The point of CSS is that none of their claims pencil out if you do even basic math, and they proved that by doing the math. They've also gone after other space grifters like orbital assembly.