If you are constantly late for everything and always blame it on your kid, you are doing something wrong. You should know by now that things always take longer than expected with a kid, and plan accordingly. No, you will not always get it right, and that's fine. Occasional lapses are expected and accepted. But if it becomes a regular pattern, you are simply shifting blame for your poor time-management skills onto a child that does not deserve that finger pointed at them.
If you are going to discount my opinion out of hand, I suppose I can't keep you from doing that. But, my opinion happens to agree with that of a parent upthread, so... take that as you will, I suppose.
Really? What about children of truly abusive parents (who are not themselves parents)? Are their critiques of their parents as parents not remotely sensible?
I'm not at all in favor of people aggressively policing the parenting practices of others. I just don't think Dunning-Kruger applies at all here, because everyone (except orphans) has some significant experience with the practice of parenting - even if it is only as the parented, you can still form cogent opinions about the practice. It's not some high expertise domain like programming, it's literally human nature.