I've seen it spun as a move away from the legacy stack into the new modern architecture. Of course the legacy stack programmers have a suspicious common element.

Also, of course, 2-3-5 years later the legacy stack is still what keeps the business running while all the new shiny toys have come and gone.

I had a boss who came over, asked me what was working on and then looked me in the eye and said, firmly and deliberately, "So you are working on transitioning to the new architecture". I shrugged, said "I guess", and he left. Only later did I realize that he was saving my hide.