The article says that “Samsung has added code into its latest watch OS update, indicating that the Watch Unlock feature may also work with Galaxy watches and phones.”. This means that the article’s title (which I reused) is a bit misleading.

But, anyways, do you understand the importance of this feature? I do not feel “It’s always a pain to have to unlock your phone when your hands are full” - when I need my phone, I have at least one hand free, and unlocking via face/fingerprint is not a pain at all.