I see it as a tradeoff. If someone wears their bias on their sleeve, you know where they're coming from. If not, you have no way of knowing whether you're reading someone who is judiciously adhering to a process that minimizes bias, or whether they are deliberately concealing their bias, or whether they are so deluded that they imagine themselves to have no bias whatsoever, which would be absurd.

Regardless, you're still advocating for a low form of argument.