That's interesting, but reading that
If someone else gains access to your unique captcha-bypass link, then they could try to brute-force your password
I guess I won't be using it. Captcha works fine on all of my devices. The only times I've had an issue was when I didnt have an alternative to using a network that didn't have good anti-spam measures and was likely blacklisted by google. This has happened in crowded cafeterias sometimes, and I had to complete many more captcha itterations than usual. Other than that it hasn't been an issue. Although some might consider it a privacy issue.