My point is exclusively with chili peppers, as the spice increases so does the flavor. I didn't grow up eating spicy food, and my experience has been that as my spice tolerance has grown overtime I have found access to increasingly wonderful flavors that are simply not present at lower spice levels.
I know I've had hot sauces that were just heat without any kind of real flavor. It's not that I couldn't taste it. I could, I just didn't want any more of it.
Hot sauces that add it to boost their "spiciness" ratings taste awful as a result. The flavor of it stands out, and not in a good way
Habaneros have a sweet flavor that accompany their spice.
Serranos have a very distinct flavor as well.
Each pepper has a flavor that comes with the spice, and yeah the more spicy the pepper they more rich the flavor generally.
Being desensitized to heat does not desensitize you to flavor. Because of a correlation between heat and flavor diversity in peppers, people desensitized to the heat can taste the more complex range of flavors available in peppers.
Anyone can learn to eat peppers, most people choose not to. Could swap out peppers for a very long list of other foods and it would still make sense.
I could imagine this.
> can only taste flavor with heat
This doesn't make much sense. Can you elaborate on how this effect would work?