Duplicate Software on Samsung Galaxy S7

Walt Mossberg:

I agree that the S7’s have the cleanest software build of any Galaxy I’ve tested, and that Samsung’s TouchWiz interface has been toned down. But there’s still too much duplicate software for my taste. For instance, out of the box, there are still two email apps, two music services, two photo-viewing apps, two messaging apps, and, except on Verizon, two browsers and dueling wireless payment services.

I still don’t understand this.