All that with a single LoD game.
Imagine with a franchise...
How would you explain PS2 doing 50% above without having a single LoD? More people bought because they thought it would have more LoD?
I know I was excited to have PS2 and confused with why there was another system to be launched (I was 15 at the time) for the second part of Soul Reaver (It didn't only ended saying there was a sequel, it also said it would release on PS2).
Yup, after LoD people bought the PS2 expecting for more, that's why it's the best selling gaming system ever.
Then the PS3 came and no new LoD was released and a lot of people went away, that's why it sold so much less.
Then the PS4 came and Shuhei Yoshida (LoD producer) was in charge and Mark Cerny declared his love for LoD and a lot of people came back, that's why it sold a lot better than the PS3.