What's wrong about the tutorial? It walks you through the first 5% of the game. The remaining 95% unlock in a way that makes it obviously an improvement to something you have already. Personally I really liked it.
The old tutorial was actually better. The new one they introduced is really bad. Not only does it not explain things, but some of the mechanics actually work differently in the tutorial.
To get beyond a certain point in this game you will need a exact understanding of certain mechanics and advanced patterns. I doubt most people would come up with advanced patterns (e.g. how to build a well working main bus, or a conveyor balancer that works well) by themselves and learn that from the wiki.
If you purely stick to everything you learn ingame, you will probably hit a wall after 20 hours or so.
