One comment about if blitz teaches new players or not.
In my opinion it doesn't it too much.
In old times there was DD or CL or CA rooms. You had to learn fast the concept of making a line, the concept of stay away from range and knew fast what other ship of your class outrange you. They were like "miniBB" rooms. In blitzs there isn't anything similar to a line, you don't have to know about ranges, about formations, about making a line or about who outranges or doesn't outranges you, my god, even you don't have to use manual aim =.="
I think the way of making new people enjoy the game and learn fast is to recover that kind of rooms (DD rooms, CL rooms and CA rooms). But the direction SDE has been setting up for the game is a very different one.