So thinking back on the show and trying to make sense of things knowing what we do now, is there any tangible, sensible reason Halbrand saved Galadriel from drowning? I mean, I can't imagine she is his only 'in' to gaining favour with the Elves. There's like a million other ways to get into their good graces, and even in the official canon he does so through playing Celebrimbor's ambitions, which seem quite in tact in this adaptation.
If anything, the most sensible thing to do would have been to allow Galadriel to drown. He would have been fine in Numenor without her, no?