As seen on the POV, they VDM-ed an LSPD officer, which gave their gang an unfair advantage. Then, they suddenly turned in front of me, against which I couldn't do anything but crash into them... Since it was an active shootout and they were fleeing from me, I tried to ram them within RP limits; as visible on the POV, I only used pit maneuvers or hard braking in front of their car, as an officer would do in this situation in real life. Also, the thread owner should be considered to be punished for mixing at 0:22.
To sum up, the first ram was not intentional, and the others should not be considered as car ramming in my opinion, as they had RP background and were not executed in a manner that wouldn't be done in real life.