Animate CC and GSAP certainly make it easy to build banners regardless of timeline or coded animation. I use it a lot.
I also use GSAP for DOM.
I look at the creative and make a determination based on the storyboard frames which tool would serve the animation best.
I do prefer hand coding but there are short cuts and conveniences that Animate CC provides that are usually worth the compromise.
As long as the end result is within spec, performant and makes the client happy...