Not quite the right place, but most suitable for all those using Harmony and Alexa. I looked at the Alexa skill when they were first introduced, and am sure it used to require a "Alexa, ask Harmony to .... " command.
However with introduction of scenes, the functionality is much better. Now its just "Alexa turn on living room apple tv/bedroom fire tv" etc You can then also just say "Alexa pause/ play / turn volume up/down " etc. and ask for specific channels.
Not sure how I missed this change, but hopefully of use for others. Its simplified my setup so now I can use this plugin for triggering actions on harmony changes rather than trying to link it and the alexa hue plugin to get voice control.