Yes it is.
Yes they did, and I thank them for it. Now I don't have to. Because of Toole and Olive, I know what measurement correlates with what audible experience of a loudspeaker. For instance...Toole's big one..Off-axis. Thanks to him I now know what allows my speaker to throw an image and have an immersive soundstage. Measurements are only good if they tell me something. Thanks to Olive and Toole, the measurements now tell me something.
I don't need to know what someone's preference is. This "philosophy" works for me and those who share the same goal--complete neutrality. True High fidelity.
Before I recommend a loudspeaker, I always ask the OP if he is looking for complete neutrality, or a speaker that has a sound he will like.
If he says the latter, I always recommend he listen. How else would you find what sound..sounds good to you?