There is really no contradiction between the two things. Scrutiny absolutely does not mean condemning in advance. Go around's are a perfectly normal part of flying, which could be due to any number of causes from weather externalities to technical issues (another plane not evacuating the runway, another plane having an emergency, problems with an instrument, etc) to human error (ie problem with the approach). You would expect externalities to be (reasonably) randomly distributed over time, and if a pilot has very significantly higher rates of go around's than his/her colleagues, you would simply want to understand why. You may perfectly find that the pilot has just been unlucky or is being particularly careful in certain circumstances. However, you cannot exclude that it might also stem from something else.