I've had a look through their list of "low credibility websites" and they seem to be either humour sites (like the The Onion and ClickHole) or right wing sites

I've had a look through their list of "low credibility websites" and they seem to be either humour sites (like the The Onion and ClickHole) or right wing sites (I admit there may be some left-wing ones on there that I'm not familiar with). Is the claim that there are only the right-wing sources for these misinformation networks, or is this just one network they examined?