That's exactly what happened. She was good but could not outscore Koga. You can check her stats this week she went on full decline. That's how inconsistency works. Hence the reference to Nwakalor.
It's obvious she went down. You don't need to see her stats to know that. What i mean is she took a 360° turn from good to bad.
Inconsistent players don't tend to be good in succession then die at the end. They're usually good in this match the flop on the next game.