I’m all in for both alternatives! Many have read or heard that a mastering engineer should only use an EQ and maybe a limiter. In most cases, I’m sorry to say that this is most often based upon a cute idea and not from experience. But in some rare cases, that is enough! The better mix I receive, the cleaner master I will do. If I feel there is, for example, room to make subtle changes to make the music express more/stronger feelings in some way, and I feel that may be good for the song, then I will. In my opinion, the result is so much more important than a theoretical point of view.