The point is not to have or not have the whiteboard during interview but how and what it is being used for.

The best way I found to interview candidates is to have few different discussions. One of the discussions I like to have is to try and solve some kind of problem that you could potentially have in real life. I am solving problems with people this way on a daily basis so this lets me observe candidate in a setting that is already familiar to me and hopefully to the candidate. The whiteboard is then used exactly as in real life -- as an tool to visualize and communicate ideas and hold it as a kind of cache and reminder for the duration of the discussion. The whiteboard is there during interview but I will not require candidate to use it. If I have trouble understanding the idea I may ask "ok, I can't visualize this, could you maybe draw it for me?"

Nobody programs on whiteboard in real life. If I need to program for presentation, for example to train my team on some topic, I will bring laptop.