I literally said “getting them from plants is of course possible”, my observation was a it’s easier to get the right amounts of the amino acids from a source that already did the balancing for you vs eating a wide range of plant matter rich in some and not others.

Meat and eggs are complete proteins in and of themselves, as a single source they are complete in all the essential amino acids, plants aren’t so you have to be more careful to get a decent mix.

I’ve no dog in this fight, I’m not a vegan or vegetarian but I also eat very little meat for medical reasons so I made sure I ate an increased range of plants to compensate.