I have long suspected that rock points are disproportionately higher for some reason, but I haven't figured out why. I will investigate this one more.
EDIT: Found the extra rock wins bug. Error in my random logic.
The W/T/L was wrong. Will fix this in the next release.
The streak going up by multiple is likely from an upgrade (will double check), but I have not seen mulligans dropping by 2. I will see if I can repro this.