Because I don't know most of the characters you mentioned? But you're obviously trying to compare movies/series/books with video games, which is stupid. It is far easier to collect the relevant data in a video game. All you did is claiming that the developers don't know what they're talking about, or how to analyze their data. There are several interviews with developers, official posts in this forum, the Bioware infographic, polls, surveys and reviews, and they all prove you wrong. You simply don't have a point.
And Liara is only mandatory for 5 minutes on menae, just like she is missing at the beginning on mars. 2 missions.
You are clearly grasping at straws. You don't think there are message boards for TV Shows? For books? You don't think it's easy to collect data? There are political groups, private groups, and all of that who make money doing that. It is quite simple.
I don't think you even bothered to read, truly. The point I addressed is that "Just because the developers say Liara is a fan favorite doesn't mean she is. Characters like Lana Lang from Smallville were said to be fan favorites and they are not." Your response is: "Interviews with developers say Liara is a fan favorite." Except, no, the point was that developers saying it doesn't make it true.
The infographic has been addressed, not to mention it only counts who goes on the missions. Whether or not the character is a fan-favorite is beside the point. Also, as mentioned, it's weighted in Liara's favor, which you ignore. And again, it counts who goes on the missions, so Liara gets counted three times. Even if she's only there for half the mission, it counts as she goes on it. That's all it does. Consider how Garrus is within 2 points of Liara, and can only go on one mission (and might even be dead and therefore unselectable)
Quite simply, you're throwing out useless points that don't answer the points made. At this point, you're just Liara trolling. Until you're willing to address that just because a developer says something doesn't make it true, you've got no case.