Arrangers have always been easy play as they are designed for the home hobby player, and if they bought the styles (Loops) and sounds up to date, then with the correct marketing they could be accepted by the younger market. (Most older players would probably moan though as most don’t consider anything post 40s to be real music)
One thing is certain though, there is no substitute for practice and talent as seen here https://www.youtube.com/watch?feature=player_detailpage&v=VCED5cVnxxY

Enjoy

Bill