did some testing with hain just now, and this was actually a much closer matchup than I initially thought with a slight edge to my deck. Because dragons were used instead of aboms and maxwells, it slowed down your deck a lot. I was never able to beat the version that was played in round 3 in testing.
As for the dim deck you also could have played, that matchup was close to 50/50 as well.
So, this wasn't the mismatch I initially thought this would be, but RNG definitely played a big role.