I apologize because I think I missed that you mentioned that you played FL (my mind probably just read CC and called it a day), therefore it makes my take on playing "melees" or selfish jobs a little out of touch since it would have applied specifically to CC.
I'd agree that DNC has always been split between a heavy support directed at a partner and a heavy focus on solo power, keeping that duality, unlike BRD for instance that's mainly a team buffer. I think the job would benefit from getting Dance of the Dawn procs from your own kills as well as long as partner is active. If this would be too strong (notably in CC), then numbers and gauge increase can be adjusted. Currently a single Dance of the Dawn fills up the gauge very fast already. I heard talks about -15s of charge time, but sometimes it feels like more.