It's possible that some of the tastiest food ever was already extinct before the human Era and we will never be able to try it. amirite?

Doubtful. If anything, flavor has increased along with science and technology. Food today is better than it's ever been.

I think that we are pretty advanced in making stuff that tastes Not from this World dont you think that All those Taste enhancers are pretty good.

Galápagos tortoises are supposed to taste incredible, they aren't extinct, but you can't go around eating them now.