Mine does a fine job washing off crusty dishes. Mainly need to make sure the temperature is high enough, 50 or ideally 60°C. Also helps against grease build-up in the internals which will make it last longer.
Or maybe your dishwasher just went so hard on the water saving it no longer does its job, which is a real issue sadly
Too many is still better than too few, and it’s not close. Useless comments make parsing a bit harder. Missing comments can mean hours of research.