Sure, there may be people who are used to / need to do video from the laptop. FWIW I do work remotely / from home, and I do chat with my coworkers and customers regularly, but we only do voice.

If I needed to do video more often, I'd probably get a dedicated cam anyway, as it works when using external screen with laptop lid closed (which is what I do at home). But sure, that's not an option when traveling.