Yea I don't think it's the only principle that should drive product development, but it helps ensure you're always solving real problems for your users.
There is still a lot of room for creativity once you've identified a class of problematic queries too. Especially as a search engine becomes more sophisticated, how you solve clear query failures can be a lot less straightforward, and clever features or machine learning are many times needed.
I will say there are clear exceptions to this inversion rule too. For example, we switched to a Learn-To-Rank system for our core ranking in the past year and we couldn't necessarily point to it clearly being the solution for problematic queries we were seeing, but it proved to unlock a ton of value and drive a lot of relevance improvements and surprising benefits in ways we couldn't necessarily predict for our specific use case and users.
There is still a lot of room for creativity once you've identified a class of problematic queries too. Especially as a search engine becomes more sophisticated, how you solve clear query failures can be a lot less straightforward, and clever features or machine learning are many times needed.
I will say there are clear exceptions to this inversion rule too. For example, we switched to a Learn-To-Rank system for our core ranking in the past year and we couldn't necessarily point to it clearly being the solution for problematic queries we were seeing, but it proved to unlock a ton of value and drive a lot of relevance improvements and surprising benefits in ways we couldn't necessarily predict for our specific use case and users.