No mistake? No life.

One of the true intellectual giants of humanity, Albert einstein, once said "The person who never made a mistake has never tried anything new". That is true in polishing your CV as much as for anything else. The problem is that you have no idea if you made a mistake, and in that case what. There is no feedback loop in the system telling you that your resume was well recieved, but that you fell on the finish line because there was a more qualified candidate; or that you failed because it was simply crap. If you were among the top candidates, you might be askrd about other open positions and they might friend you on LinkedIn. But it is very unlikely unless you got so far as to the interview.
The sorting process in selecting whom to bring to an interview is as arcane, and seemingly much more random, than the Hogwarts sorting hat in rhe Harry Potter stories. After all, he had already got in. The hat just had to decide which house to put him in. And with the limited choice available, it could hardly have been a very difficult task.
When you apply for a position in a company from the outside, the process is nontransparent. You have no idea what is going on. When you apply for a position inside a company, the process is much more like being confronted with the sorting hat. Will it put you in Griffindore or Slytherine? The job may be the same. The difference is the other people in the house. And it is really them that the hat (or the HR department, or the line manager) cares about. If you are a known troublemaker, but not so bad they really want to get rid of you, the hat might place you with other known troublemakers. Or with people who never cause trouble. It depends on whether they need to be shaken up. And whether you are good at shaking without stirring up too much bad feelings.
Being moved internally in a company often feels very much like being a rabbit pulled out of a hat. You were sitting quietly in your dark cubicle, and suddenly you are dragged into the light, cross-examined, your merits scrutinized and your qualifications analyzed. You were muddling along without making mistakes. But you were not trying anything new, either.
The person hiring you is willing to try something new. Otherwise, you would not be there. But he is also afraid of making a mistake. If you do not work out in your new position, he can not easily fire you (although even in countries with strong labor laes, this happens all the time). Correcting a mistake is a costly and painful process which most companies can ill afford. Albert Einstein was right, but also wrong - at least about the consequences.