Still pretty prevalent at that time, definitely, but DSL was definitely a thing by the time 1999 rolled around. I even had pretty fast DSL for the time -- 640 kbps.
But otherwise totally agree with the critique. Modern connection speeds have enabled a huge amount of bloat. I grew up when 1200 baud modems were the latest rage, and patience when downloading was a hard requirement.
I lived in rural North Dakota and had dial up until 2005. It really sucked the last couple of years.