Does anyone know wth Lanliss is talking about?
But yeah, there's a lot of things new players don't learn. Some of them are more important than others, and there's not a good way to teach all of them in a quick little tutorial. Chem spray is hugely important if they want to do well in pub games, because fire weapons, and flamers in particularly are so abused in pub matches it's not even funny (since new players don't know how to chem spray).
But there's no easy way to teach chem spray, as it's a really high level technique. You have to master timing on a variety of ships, knowing when to chem and when to repair to make sure things don't catch fire and don't break. This takes a good understanding of weapons and damage types, as well as knowing how to look at what the enemy is using.
Realistically, all the important stuff needs to be learned from more experienced players, or picked up on much slower as you play and ignore everyone. One of the problems with this is that some people think they know what they're talking about, and they're incredibly wrong. There's a surprising amount of misinformation out there that even some high level players will swear by.
The real challenge is deciding what information is the most important and currently not being taught effectively at early levels, and how to teach players this in a quick and easy fashion? There's whole novels worth of information about how to play the game, but we can't encourage them to read through all of that. Nor can we sit them through a 30 minute video.
So it's important to decide on what's important, what can wait, and how to deliver the information.