I’m going with a partial agree and disagree on this. If you limited it to most commercial ketchups, it would be a strong agree - because most major brands taste of a lot of sugar, a bit of vinegar, and a hint of weak tomato/spices.
A well made homemade ketchup or other ‘naturally’ sweet fruit sauce made from quality fresh veggies is quite a different thing! Which is why I like my peach habanero sauce on sausage - it’s made of roasted peaches (to bring out the sweet and drop the moisture), habaneros, roasted onion and garlic, salt and lemon juice, all blended until smooth. And nothing else.
Sure, it’s sweet, but from the ingredients, and sweet and spicy always works for me. And pork (sausage, chops, etc) with sweet and spicy combos are a thing of epic goodness.
But yeah, commercial ketchup and a lot of other sauces taste of all the added sugar or (shudder) HFCS to the point that any actual sauce flavors are washed out at best.