The initial argument of /rotate is limited to 1 entity

As described in https://www.minecraft.net/en-us/article/minecraft-snapshot-24w40a , the /rotate command uses the same syntax as the teleport command:

 

> Note: parameters have the same meaning as in the teleport command.

 

However, while the teleport command's initial argument is not limited, the /rotate command's first argument is limited to 1 entity