SM has considered the MAC users and is trying as of right now for all the new movies to be able to run on both MAC and PC while keeping the highest quality.

You as a MAC user know that sometimes going between platforms can be problematic

Please remeber there is a lot of work involved in the production of these movies and SM is trying to make sure the quality is there as well as making everything run smooth on other platforms. Which in its self is a lot of work.