That's somewhat true, but trite, and shouldn't imply that you shouldn't listen to customers. It's up to you as a product manager to analyze and synthesize people's feedback and thoughts, integrating it with your other knowledge and constraints, in order to arrive at (as much as possible) well-founded product plans.
If it works well, I think this tool could really help accelerate the process, especially if you can get it to give you its sources, like Perplexity does.
That was exactly the reason we built this - to facilitate the gathering of this intel. Will it be a panacea for doing research - of course not.
But it can speed things up a bit and throws another (probably faster) research methodology into the mix.
I agree, there is a lot of opportunities you can find when looking at a subset of frustrated customers. Ironically they tell you in greater detail what they dislike vs the super happy customers on why they like something.
If it works well, I think this tool could really help accelerate the process, especially if you can get it to give you its sources, like Perplexity does.