This is true. I mainly live in a country with unlimited, fast internet but also spend some time in a country with limited and slower internet. But even when i have fast internet, downloading 70 gigs when I just want to play a game for an hour is very disruptive. I think a lot of this download and replace vs efficiently patch argument is predicated on the premise that the update itself was necessary. In many cases such as Forza horizon, I've noticed that the update is just to push a bunch of paywalled content / advertisements for new paywalled content that most people won't even play. I miss the days when I bought the DVD and that was the whole game.
Unfortunately there are still people on metered/slow connections that really do care still.