No, it's not. Every single one of those articles stems from a post on their forum where it's been requested. They regularly pick them based on their popularity in the forum. As long as they're consistent with that, it's completely possible to address these specific instances.
It's not a filter for bias and no one has claimed that it is. It's a filter for whether or not to address the content of a claim. Popularity is absolutely a reasonable filter for that and that seems to be what Snopes is using, regardless of politics, satire, or otherwise.