And people wonder why managers like hiring in person workers?
It's not that you can't fake some stuff like this in person, but it's both harder (more expensive) and a lot more obvious.
I guess it's possible that if the new hire isn't legit, they might send a better person, but since those sessions were quite regular, plus they were also doing "remote stand-ups", it would be tougher to always be able to send the same replacement and / or not get caught.