As somebody with fast Internet at home and at work, I still want to see far smaller page weights because I spend a lot of time working on trains or browsing the web on my phone. Internet connections in those situations can be fast, but they are often very inconsistent, both in terms of speed and latency.
I've lost count of the number of times a page has unnecessarily been rendered unusable because although it had loaded all of the important stuff, it was waiting around for a web font or JavaScript to finish loading and I was going through an area with poor signal.
That's in a developed country with solid, ubiquitous telecoms infrastructure. Most of the world – and most of the people in the world – don't have it as good, so it matters even more for them.
I've lost count of the number of times a page has unnecessarily been rendered unusable because although it had loaded all of the important stuff, it was waiting around for a web font or JavaScript to finish loading and I was going through an area with poor signal.
That's in a developed country with solid, ubiquitous telecoms infrastructure. Most of the world – and most of the people in the world – don't have it as good, so it matters even more for them.