Why didn't they include that the model 3 was the most popular sedan this quarter?
Because it wasn't. For example, In July alone, Toyota sold 26,311 Camrys and 26,754 Corollas. In August , Toyota sold: 30,141 Camrys and 26,155 Corollas. This means, even if they sold no cars in September, both Toyota models sold more in Q3 than the Model 3.
The Model 3 was the best-selling EV sedan in Q3, but it should have been, given that it doesn't yet have any real competition.