answer my own question:

• Morph only works between slides, since it’s a transition. So, you can’t use it in exactly the same way as other animations.
• You can’t edit the paths of the objects. They take the most direct route to their destination.
• The Morph animations can’t move independently of each other or within a specified timeline, like animations can. They all move at the same time. You could get around this by spreading out the transitions over several slides, but at a certain point it would be easier to use traditional animations.
• If you’re recording narration, be aware that you can’t record during slide transitions, so you’ll have to wait until the Morph animations are complete to begin narrations.
• Your powers are too great for your friends with earlier versions of PowerPoint. The morph transitions are lost outside of PowerPoint 2016.
• Remember you need PowerPoint 2016 and a 365 subscription to use the Morph feature.