I don't have a problem with it since DB was still focus on human capabilities. Freeza is the strongest in the whole galaxy or unniverse along with Goku and Dr. Gero just made a two robots to surpassed them? No wonder why these Androids were rejected as a main villains and forced Toriyama to create Cell who is a lot of credibility surpassing Goku and Freeza.They did it in the RRA arc too. Hell a Pirate Robot was stronger than Krillin. It's not out of the ordinary.
apparently in GT you lose your halo the moment you descend from heaven to hell, and when you escape Hell you also magically are alive again despite that contradicting every known fact about death in the original mangaHow did they lose their halos?