As both a tahini lover and seed oil disrespectooor, this is a question I've thought about more than I care to admit.
imo, the tentative answer is somewhere in the middle. With the caveat that I'm not...
Tahini is delicious. As is toasted sesame oil. I think you can enjoy these as flavors and that’s very different than using them as a base cooking oil. I put a squirt of toasted sesame oil in my omelette and it imparts a bacon like flavor. So good.