I my opinion DB(rider) is something which need skills rather than pure advantage ,calling it OP is irrational . Like helikilling , rustler ramming , car parking ..i consider DBing as a extra curricular skill which one must command over time . You have to predict movements , advance shoot , prevent jacking and ram people at right moment . Lowing damage is injustice to basic ptp tradition .
For spaz db i support as it dosnt really need any skill just aim and shoot + damage is exaggerated by incrased range , rapid fire , low reload time and more mobility of aim than traditional rider DB.