There's a balance. Sometimes I enjoy watching someone nerding out about a subject. Charisma means they'll sometimes start banter with the co-host rather than continue with things interesting to them. Or they'll try to "make" things entertaining and exciting.
I guess it depends if you're looking more for entertainment or information.
I disagree, even if you don't care about banter, a capable host will be able to drive conversation and get panelists/guests/interviewees to express themselves better (even if they are typically awkward in front of a camera). I see it all the time in professional esports streams.
I guess it depends if you're looking more for entertainment or information.