Yep, I think people tend to forget how bad the blackberry line up was compared to the iPhones and even androids they were competing against. Their flagship in ~2011 was the Bold, which could barely browse the internet, had a horrible camera and an extremely dated UI. Going up against the iPhone 4s which is still functional to this day.
Sometimes some companies just deserve to fail. The current duopoly formed because the competition just couldn't keep up, and that's on them