Also, I disagree that it's easy to complete in 20 hours. The speedrun currently sits at 1h25m and while <20hr is quite possible for anyone to accomplish, it's pretty unrealistic for a first run where you'll likely hit a few progress snags.

Though, unlike some other games, the progress never slows down - misallocating early skill points in some games causes serious pain making up the same points without the proper tools at an exponentially increasing cost... in Factorio a tech is always the same cost so researching out of order simply delays how quickly you can become more efficient.