The things is -- they ding you for a whole range of other things, all the time. Like not working for the right kind of company in your last job, failing their bullshit tests, or heaven forbid, having a "gap" in your resume. As if having a life (or a family member that needs taking care of) is to be seen as thumbing your nose at their sacred cause.
At least fixing stupid mistakes in your resume is well within your control, and (unlike cramming for their tests) doesn't take hours and hours of your time.
That's fine. I see it like this: If there is a stupid mistake, it shows that I am a fallible human after all. (I tend to think that I don't have stupid mistakes in my CV)
But my CV also shows part of my character, mainly the fun part. If that is deemed unprofessional by a company, I immediately know they are no good fit for me.
The thing is: As with every relationship, they are two way streets. I am not a beggar as a potential employee, neither am I king. We see eye to eye or not at all.
Mine certainly isn't, it's like me. Worked out so far.
But then again, I wouldn't want to work for most companies.
Pecunia olet!