Let me guess, this happened exactly 1 time, but you came into the forums to cry how it's a widespread occurrence for as few pity points.

I've done hundreds of those, and not once have I met such behaviour on the Light Data center. Also, you don't have to announce you are a first timer. We can see you watching the cutscene, also, if you want to tank, turn on stance and Voke to communicate your intention at the begining of the fight.