1. Starfleet made Janeway an admiral to keep her away from commanding a starship. She violated the Prime Directive a dozen times over, botched first contact so many times that the Federation could never make any alliances in the Delta Quadrant, made several enemies of the Kazon, the Hirogen, the Krenim, the Malon, and the list goes on. She's just a menace with a starship to back up her shenanigans. Fortunately, Starfleet took Voyager away and gave her a desk.
2. I find it odd that the crew comes across a twin of Data, and no one even asked the question, "Could this android be Lore?"
I'm not sure if you're being sarcastic, but Ron Perlman has made a career of being the guy in the rubber mask.