Earlier quoted context omitted.
I completely agree with this, but I would prefer if there was a mechanism to keep offline backups. Currently if I lose my phone I am frozen out of my accounts. 1-time codes do exist but they have issues - either they're very easily accessible in the form of a printed paper or they're very difficult to access like an encrypted backup in the cloud. I don't have a good solution to this problem - I am mugged while travel…
What is 2FA? It's 'something you have'. It's not 'one single thing on one device only'. It's just 'something you have'. 'Something you have' relies on physical security, so if you have the same physical security for both your laptop and phone, there's no reduction by having a 2FA token on each device.
The concern is that Authy changes the second factor from physical security back to something cloud-based and hackable.
I don't know if that's legit because I don't know how Authy works.