Yeah I call bullshit. The number of people with rooted phones is going to be way less than 1%, and the number of those that are unsophisticated enough to fall for scams/malware is going to be miniscule.

This is pretty clearly a case of "oh there's an option here that says 'allow on rooted phones', do we want to allow that?" "No that sounds scary and risky! Of course not. We must not allow it."

The option is there, and nobody is going to try to sell not ticking it.