If they are assuming they know more than everybody involved and making suggestions to a process they haven't even gone through 20% of, then yes, they are probably a bad fit.
It's extremely hypocritical to criticize someone for the very thing you are doing (assuming the other person doesn't know how to do their job). Couple this with the fact that they are not asking for any advice on their hiring process, it's a pretty rude thing to do.
A little bit of fluff added to the wording doesn't make it suddenly polite.
> I would not want to hire someone who can take any task and complete with minimal issues.
Someone who can't do straightforward tasks without having an issue is incompetent, pedantic, or both.