Imagine, if they had updated everything according to growing demand. Bali would be one big pile of skyscrapers and highways. Thank you but no, thanks.
I'm not a luddite but I think we need places like that so we can take time of from the relentless greed driven "who has more shiny crap before they die, wins!" world.
Planet is full of concrete jungles, where 25 % of population has become mentally ill. Yes, seriously ill - lonely, depressed, childless, perverted, godless, afraid, bald and fat.
Turning off Internet on Nyepi is nothing new.
Locals like it. It has meaning for them.