something that doesn't make me say this really long sentence to access the app

'Alexa tell app X to start my car'

Something that supports actual conversation which means not having the user respond immediately . For example its impossible to build a cooking app that walks me through the recipe because 'conversation' is over within X seconds. Of course you could do weird hacks like maintaining conversation on the server side based on sessionid, but that still requires user to constantly prefix their conversations with 'tell app X ..'

These basic UX limitations make it impossible to build any serious application that can do more than 'joke of the day' type of stuff. All the apps in alexa app store are totally useless 'fart noise of the day' type of garbage.