After reading the comments here it probably boils down on what you focus. If you see the entire work pointing out the unsustainability of exponential population

After reading the comments here it probably boils down on what you focus. If you see the entire work pointing out the unsustainability of exponential population growth that will come to an halt either by positive or preventive checks, then you will probably not call him wrong. If you focus on his view that people will probably not be able to get the fertility rate down to sustainable levels and that a Malthusian catastrophe is therefore probably inevitable, then you will most likely call him wrong. But as I said before, I didn't read much of his work and therefore I might have a misconception about what points he actually stressed the most.