I know and it's to their credit they mentioned that but they also talked to other scientists in the video piece and it's basically a case of "delayed not denied"
I posted this in our subforum too, and it's food for thought.
I know what he said was delayed (and they covered that too) but the main reason why it's inevitable is we have a physical limit and that's the surface area of the planet (of which only 30% is land.) There's also the fact that we're chopping down all the forests-- which is part of what is driving the current mass extinction. On top of that there's heavy pesticide use, which is causing the destruction of pollinators. The 70% of all species going extinct since 1970 is pretty alarming and that will be up to 95% by 2100.
We'll conserve a few sure, but a lot are going extinct-- many already have.
I don't believe in depopulation either, but I do believe in maintaining a balanced birth vs death rate, which is 2 children per family. I think we'll get there (we already are starting to because male infertility is rising, even in developing countries)-- so it seems like Nature has its own way of doing things to keep humanity in balance with other species. That's actually a part of the discussion they didn't cover and it's fascinating to see how the planet regulates itself.
The thing I agree with that they said the most is-- the planet will be fine, even after we're gone.