That’s being selective. Her time on JL was fleeting, she stopped being a regular guest star in books, and even BoP wasn’t stable anymore. It’s came to a point where Oracle’s role the DCU was to support the new Batgirl. At a time where everyone around here was seeing massive changes to their role too. She became very miserable, had to be emotionally saved by the new Batgirl, and her stories even became rather hard to stomach. It was a hell of thing to have to watch her get wheelchaired down a flight of stairs. Even Black Mirror, a story which I thought was fantastic, shes being stabbed in the legs and tortured. Things got really bleak with Oracle, and what’s more she stopped really progressing.
Yes and no. In today’s world computers and technology is all about convenience, ease of use, and being mobile. The days of sitting at a desktop isn’t really as relatable or true to today’s time. Superhero’s don’t really need a 411, and knowledge and information is readily at the palm of ones hand. Cyborg doesn’t need to fill Oracle’s role. But your right, Babs could indeed upgrade her technology and Oracle could evolve to be truer and more relatable to today’s time.