Well, as you have stated well, looking at the situation now, we can say for a fact, its not working, or its not enough, or somewhere in between. What I`m proposing is an improvement, witch is different from the current system, since we stated it doesnt give wanted results.
That is why there is coaching in the strategy games, guides or tutorials are not enough. What I`m suggesting is that. First impresion is what really maters if you want to keep new players.
If I simply log in, see on the news page tab with beginers lobby link (or something like that), with a discord link where I can see if any of the coaches are online, (could be set time few hours per x many days on week or something), create a game, and get quality improvement with a person to not only teach you, and with knowledge comes creativity. Those new breed of players could bring some fresh air, for the lack of the better tearm.
Yes, it requires some work put into in, but from what amazing work I`ve seen here done, and love put in this project, I have no doubt that some work isnt an issue for you guys :D. Soz for the butchered English, not my first language