It is possible to send a notification, though. I do something similar via an Alexa Skill called "Notify Me." Once you activate the skill, you are sent an access code that you can use to send notifications.
My set-up is:
If my door is left unlocked for 15 minutes, Stringify sets a switch to on
If the switch turns on, IFTTT uses the access code from Notify Me to send a web request to Alexa
A notification shows up on my Alexa devices. I ask Alexa what my notification is and she answers, "The front door is unlocked."
True the announcement won't be made until you ask for it. But you would miss it if you weren't there to hear it.