David Y. answered 06/19/19
English (Language Arts) reading/writing/editing specialist.
It's perfectly fine to use commas wherever they are required or when they make reading easier. To say that it is fashionable to eliminate commas whenever or wherever they occur is an absurd claim. If your group leader was referring to eliminating unnecessary commas that is one thing. Anything not necessary in anything should be eliminated, right? Why have seven stitches on a cut when five will do? Commas are just as important in proper grammar as are periods, question marks, and exclamation points (Did you notice the use of commas in that last sentence?).