I wouldn't disagree with any of your comments. It's really a question of whether one looks at the subject from a reader's viewpoint, or from a publisher's viewpoint. As a reader and enthusiast I'm always grateful for the internet. As an author/editor, I know only too well that the internet (and the rise of "desktop publishing") will ultimately destroy aerospace print publishing. It's already done a pretty good job in that respect.
The simple fact is that all of the internet-based media seem to work very well, but they don't match the commercial success of print media. Conversely, print media no longer enjoys the commercial success that it once did. There doesn't seem to be any realistic prospect of print media ever enjoying the same commercial success through the internet. It just hasn't happened and shows no sign of ever happening. It's just the way it is.