It's a sponsorship, so I'm not complaining, but if the goal was really to get people to use a password manager he would be sending them to Bitwarden since they have a free plan, plus their paid plan is only $10/year compared to $36 for 1Password.
I've been a 1Password user for over a decade. It's user friendly, and I'd rather not have the responsibility to self-host my company and extended family's credentials.
Critically though, Bitwarden is open source, meaning that if the encryption is weakened, it would be noticed in the source.
With 1Password the clients are closed source: you have to trust the company to encrypt the secrets properly and an (malicious or accidental) change of the encryption cannot be detected by the user.
After Lastpass's fiasco around encryption, I don't feel like blindly trusting another company.