What is the main issue with PESTEL model?

The main issue with PESTEL: Looking is easy, seeing is hard! Sometimes we can well see something, but it is hard to recognise what we’re looking at, particularly if we haven’t seen it before. Often we look where it’s comfortable to look, but that is not where change is coming from. PESTEL hence only deal with what we ourselves see, and does not deal with what is not seen. As a human, we have difficulty seeing the full picture and we might disregard important facts if we do not know anything about them.