I gotta say, that part of the system doesn’t bother me at all.
If you solo on a 36-player map, you’ve defeated 35 other players. If you solo on Classic, you’ve only defeated 6. So, at the very least, a 36-player solo should be worth ~6 times more than a Classic solo.
However, this doesn’t consider the increased difficulty of achieving a solo in a large variant, even as the strongest player. On this site, 619 of 1284 Classic matches have resulted in a solo victory – roughly 48%. On the other hand, only 3 of 34 Europa Renovatio matches have resulted in a solo victory – roughly 8%.
In other words, in addition to defeating 6 times as many players, the top player has to overcome solo odds that are 6 times worse than Classic. So, it’s not unreasonable that a Europa Renovatio solo would be worth 36 times more than a Classic solo.
Of course, this is not how the rating calculation works in practice. The Europa Renovatio gV (92.68) is only 40% higher than the Classic gV (65.95). If we simplify the math by assuming WTA scoring, and that every player starts with the exact same rating, a Classic solo is worth 65.95 * 6 * 0.5 = 198 rating points, while a Europa Renovatio solo is worth 92.68 * 35 * 0.5 = 1621 rating points – roughly 8 times more. If anything, this seems to undervalue the difficulty of achieving a solo in a 36-player game.
It’s also worth noting that all 3 Europa Renovatio solos occurred in gunboat games – no one has ever successfully achieved a solo victory on this map when their opponents were able to communicate.