I don't get garnishes. I don't get chocolate pieces, sauces, ganaches, fruit, and other edibles used for a dessert that either don't get eatten or have no other purpose than to look pretty. Sure, some stuff is neat. Wow! That's sugar?! It's amazing what you can do with some things. I understand some garnishes actually compliment the dessert or meal. I endorse this category. It's the "Oh, it needs something. Let's throw a mint leaf on it." It's just so empty.
Fondant is a similar story. No doubt it is beautiful and smooth. You can do a lot of things with it. However, no one likes it. I can't tell you how many times I've watched people peel it off to reach the yummy cake inside. I've had the freshest of fondant, too. It still tastes like sweetened wax.
Some do the same thing with bread. Toss seeds, herbs, or whatever on top when it doesn't compliment the flavor at all. And let's not even discuss the gross overuse of kale, a delicious and severely under-appreciated green, as a garnish.
Let food be food. We all know what it is. No matter what mold you threw it in. Or special cut you used. Or whatever else. Make it count!