Green screen - two light set up?

[worldofwigan]

Hi, my first post, been video making for years, but only now making a big step up in my game.

Ok so, I'm about to buy a collapsible green screen and I have gone through tonnes of (low budget) videos the last couple of days on how it all works. I know that basically a four light setup is recommended. However, I saw this video where the lady is using only two lights and it lights her up better than the majority of 4 light set ups I've seen. This would be ideal for me due to room restrictions. I understand however, it goes against all previous advice I've seen. Am I seeing this right, she's not using any extra lighting is she? Can anyone clarify whether that two light setup is acceptable?

https://www.youtube.com/watch?v=DO60Ldulw1E

[smrpix]

You want bright, even lighting across the screen. Everything else is aesthetics.