Google Home enables “continued conversation”

Google blog:

We’ve heard from a lot of people that adding “Hey Google” before each follow-up question for the Assistant doesn’t feel as natural as they’d like. We announced Continued Conversation at I/O as an optional setting which lets you have a natural back-and-forth conversation with the Assistant without repeating “Hey Google” for each follow-up request. The new feature is starting to roll out today, and you can turn it on in the Google Assistant app by going to Settings → Preferences → Continued Conversation and hitting the toggle.

Basically, Google assistant will keep listening (for about 8 seconds) after the end of a “Hey Google” back and forth. No need for a follow-up “Hey Google”.

Wondering if Siri will follow this approach, or perhaps develop a more complex protocol for handling continued conversation.