Having lived and worked in Africa, this video really bothered me. "We found love in a hopeless place" just sums up the paternalistic and condescending attitude that so often accompanies "voluntourism." Africa is not a hopeless place, except as viewed by those who think they understand how the world should be.
Given the fact that this was sponsored by VenTribe (which seems to be just another way of promoting consumerism--not actually investing in Africa or promoting development) and that Lindsey has another YouTube video that will get hundreds of thousands of hits, earning her ad revenue and more celebrity, I don't see what's actually in it for those in Africa.
If you want to help people in Africa, don't just go there and have pity on people. Do something. Help start businesses, teach classes, teach public health, help others to start doing that. Provide resources. Don't just take something for your own benefit.
I acknowledge I could be missing part of the story, but if I am, it's not from lack of trying to find something more positive to latch onto in the links or in the video.