Yes they should, but what will happen is websites and apps will get fatter and sloppier until the end result is slow, laggy performance.

It's a bit like doubling your salary and increasing your spending by more than double. That seems to be how website and app development behaves.

Imagine if bandwidth increased, latency decreased (approaching theoritical minimums), and websites/apps were built with a strict (but appropriately flexible) network budget.

Perhaps the best catchphrase here is "weakest link".

Even with 500+ mbps up and down, and pihole blocking a lot of ads, and noscript blocking some analytics and other trackers, a lot of web experiences are underwhelming.

Also, the recent fascinating post about how someone sped up GTA 5 online illustrates how the weakest link can be so weak that it ruins everything.