Bias implies some kind of subconscious decision being made. Like a guy just never picking Russians and not having a good reason for it.
If we want to call what Botterill is doing "bias" then fine, but his reasoning appears perfectly sound for those who would prefer it called "strategy".
There are reasons why *certain* players have been absent from my sh*t list. I'm honestly stunned that some of the stuff I've heard hasn't been leaked. I think, frankly, fans would be supportive if this stuff was out in the open.