This will make voices radically more correlatable, most likely. It's a more effective model for voice, it has run endless regressions & found better patterns to model human sounds upon. That could well make processing & comparing pieces of speech data less computationally expensive.

I don't see much relation to surveillance & transcription issues. This technology does not, would not change the field of battle significantly, if such a battle were about. Which it probably is, in some countries, perhaps even applying to Google-touched, -relayed, or Google-held data.