Earlier quoted context omitted.
Your concerns are understandable. It is about as risky as installing an editor plugin which updates automatically. The private keys used to sign releases are kept offline and would not be available to an attacker even if they compromised my online accounts. Finally, TabNine will work correctly if you deny it network access (say, by blacklisting update.tabnine.com).
Wait, is the auto-update all that's needed for network? I assumed it was license validation or something. If it's just updating, couldn't you provide a different method of updating like manual update checking, and then peoples concerns would be solved?
> TabNine makes web requests only for the purposes of downloading updates and validating registration keys.