I entirely disagree.
Things a dasher is responsible for:
1. The correctness of the order. Yes, it's fair to hold them responsible for this, because they have the order and they are at the restaurant. If the order is wrong, they can easily correct it then. If it's wrong at my house, now what? Probably I'm unhappy, even after Door Dash offers me credits
2. Keeping the food in good shape. That includes heat (some dashers use a heat bag), but it also includes keeping soup, chili cheese fries, and other things upright. (All things some dashers have screwed up for me.)
3. Paying attention to notes. I eat my Taco Bell with diablo sauce. Did he include the sauce I asked for in the notes? (Bonus points for including things like napkins and sporks without being asked.)
4. Polite behavior. Most are polite, but some practically throw the food at you and run away.