[lmilcin]

That explanation is even more strange if you figure out nothing of the infrastructure from 20 years ago still exists that could explain the difference. Every single active or passive network element must have been changed when technology evolved, likely multiple times.

I have a better explanation, and it is just greedy companies that invest absolute minimum into infrastructure, oversubscribe their internet access and pioneered worst possible customer service just because the customers have no other option.