Why is it ever desirable to have speakers that simply reflect whatever they are fed, for better or worse?
I suspect this is because, for a few folks, that is the idea of High Fidelity.
High Fidelity = Highly Faithful = Accurate Reproduction of the recording.
To some people audio reproduction is not unlike fashion clothing - a desire for the most pleasing presentation and to replenish one's wardrobe with the "latest".
I would agree that it is all a philosophy. There is no wrong or right. I prefer to collect music like Imelda has shoes rather than change equipment that way.
No rant here either - it is just the way it is - I equally respect those who see audio systems like fine wine - each to be tasted and enjoyed for a little while and then to move on. Collecting and sampling gear can be a fun hobby and nothing wrong with that. I would say that manufacturers encourage it - ever notice how big name high end speaker manufacturers offerings hardly ever sound even similar! (if it was simply about technology rather than a fashion competition for pleasing sound then I suspect you would find a lot more consistency in a manufacturer's line up)