Quite obviously you should only listen to your ears here. Harman target is a product of a preference study, and while it can be useful as a suggested starting point to try, trying to "learn" to like it is pointless if it just doesn't click with you. It's not supposed to click with everyone, and trying to push it as objective correct option for everyone is something that even the research never tried to suggest in any way, because unlike the worst internet zealots, the people behind the research actually understand what a preference study means.

As a comparison, imagine if I made a study about what pizza toppings are the most agreeable for the majority of people. Now, it would be useful info to know that pepperoni-tuna (or whatever) is what you should serve if you don't know your audiences preferences but wish to please as many as possible, but the idea that you'd have to order pepperoni-tuna personally yourself every time because it's "objectively proven to be the best pizza topping combo for human taste" is ridiculous.