I am fairly confident Tonesto will have ES fixed. However, if you only have 1-2 phrases, it might be just as easy to create a virtual device in Hubitat (and expose it to Alexa), and when that is turned on have Alexa speak a certain phrase via a Routine.
There is even a special driver that someone created that works great for this purpose. This thread might be helpful Trigger Alexa Routine on Virtual Switch - not working
