You will always find results like this and there is nothing wrong with this result.
But you should look to the average results from a large set of results, a single result doesn't tell the story,
This for example is the reason I rarily used cerberus untill the release of the elementals chapter(victory springs wonder), while cerberus was the clear better unit, it's production rate was so slow compared to sworddancer than I used those as main units, cerberus was only used where the sworddancers where unable to pull it off.
because of this our scores in scrolls tournament where much extremely more limited then today.
In the old, old, old days you could win a tournaments 1st place with only 14 provinces, in today's world, with today's production, units expansion en boosters and tournament rules that sounds like a bad joke.
My results above are pretty typical when I compare my fights with blossom. Granted, I don't have a huge number of fights to look at; perhaps 25. But on those it's pretty consistent. (and I understand the unfairness of comparing blossom 1 to sorceress 3).
I was surprised when you said that cerberus takes longer than sword acrobat. My cerberus 2 two takes 6 minutes less per squad, which I can finish in 1:10 as opposed to sword acrobat at 1:16 for the same amount of units. I realize that I'm talking level 2 and 3 and you can't compare, but when I want to train very fast troops ... as in an event or for Elvarian Guard badges, I always go for cerberus as the fastest I've got.
I think it all boils down to people at different levels will view this game differently, and Inno makes the game slightly different depending upon your level. A member of my team says she can't cater the spire, because it would cost too many sentient goods. For me, I have no such limitation, so I love to cater and rarely fight, seeing has how my troops are no match on anything except the first floor. Different strokes for different folks.