I don't think there ought to be limits on a committee's power to call witnesses and stuff, regardless of how they're sitting, whether it's in person or whether it's a screen like this, because they can perfectly easily hear witnesses as you've just done this afternoon from us here. I think that's a reasonable way to go at it.
For a smaller group it's not a bad function, particularly for committees that are having meetings with others. They may not feel safe to bring them into their space where the people don't want to go and where the costs of flying to Ottawa and giving testimony here prohibit them from that.