Unfortunately people who have rooted phones, who use nonstandard browsers are not more than 1% of users. It’s important that they exist, but the web is a massive platform. We can not let a tyranny of 1% of users steer the ship. The vast majority of users would benefit from this, if it really works.
However i could see that this tool would be abused by certain websites and prevent users from logging in if on a non standard browser, especially banks. Unfortunate but overall beneficial to the masses.
Edit: Apparently 5% of the time it intentionally omits the result so it can’t be used to block clients. Very reasonable solution.