Ideas and suggestions.

I disagree with Lizard regarding the revision of the rating system:
1) Playing on the G+U map always takes longer.
2) It promotes the popularity of a map size that was previously not in demand.
3) I am confident that you can play 2 games on Mirror or Jebus in the same time as one G+U game and get the same number of points.
Therefore, I believe that the formula is currently correct.

P.S. Kostya, we are not talking about balance and skill right now; we are talking about a different format, a different strategy, and no one is forcing anyone to play on G+U.

1) I took a quick look at your Twitch VODs, and out of 20 streams, the longest G+U game took you about 5 hours to finish, and the fastest one was about 2 hours. I'd say the average would be 4 hours. I think we all know how long it takes to finish an average XL+U or H3DM game, so what you're claiming is complete nonsense.
2) This argument is also nonsense. Why should the developers forcefully try to popularize what is frankly completely unsuited for competitive games by awarding additional rating points? People are going to play what they want to play. If the bonus rating points are the main reason why you keep playing on this map size, then maybe G+U isn't that great. It just artificially inflates the rating for no actual reason.
3) https://puu.sh/EaYBb/7ac1bee39c.png - a random example from heroes.3tv
6 hours, 2 games, +150 points. Good luck getting anywhere close to that number on Jebus, Mirror, or whatever you want. How are these fluctuations in rating even remotely healthy for the scene? You can jump 300 points in as many as 5 games; it's completely ridiculous.