MSAA 4x is required for games?

Hey!

From the documentation:

"In the Anti Aliasing list, select 4x. Unlike non-VR apps, VR apps must set the multisample anti-aliasing (MSAA) level appropriately high to compensate for stereo rendering, which reduces the effective horizontal resolution by 50%."

I was reading through the documentation for the Quality settings to learn how to properly set up a Unity project but with MSAA 4x the fps drops significantly in my test project (before any optimization).

Do I understand correctly that we have to enable it and best to 4x? Is it a requirement to publish a game to the Oculus store? 

Thanks!

-Peter