As a heavy user of both Alexa and Google Home, I would totally agree that this is a killer feature and a huge selling point for any smart home device. It will be launched before or together with Blynk.Discovery. @Dmitriy is just a “privacy-first” person who is not a huge fan of these things (can’t blame Blynk CTO for that) 
Unfortunately, this launch is not happening in July as we planned due to stabilization and bug fixing. Current ETA is September 2021.